prompt
stringlengths 51
10k
| completion
stringlengths 8
362
| api
stringlengths 18
90
|
|---|---|---|
from langchain.callbacks import HumanApprovalCallbackHandler
from langchain.tools import ShellTool
tool = | ShellTool() | langchain.tools.ShellTool |
from langchain.chains import RetrievalQA
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import Chroma
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
loader = TextLoader("../../state_of_the_union.txt", encoding="utf-8")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
texts = text_splitter.split_documents(documents)
for i, text in enumerate(texts):
text.metadata["source"] = f"{i}-pl"
embeddings = OpenAIEmbeddings()
docsearch = Chroma.from_documents(texts, embeddings)
from langchain.chains import create_qa_with_sources_chain
from langchain.chains.combine_documents.stuff import StuffDocumentsChain
from langchain.prompts import PromptTemplate
from langchain_openai import ChatOpenAI
llm = ChatOpenAI(temperature=0, model="gpt-3.5-turbo-0613")
qa_chain = create_qa_with_sources_chain(llm)
doc_prompt = PromptTemplate(
template="Content: {page_content}\nSource: {source}",
input_variables=["page_content", "source"],
)
final_qa_chain = StuffDocumentsChain(
llm_chain=qa_chain,
document_variable_name="context",
document_prompt=doc_prompt,
)
retrieval_qa = RetrievalQA(
retriever=docsearch.as_retriever(), combine_documents_chain=final_qa_chain
)
query = "What did the president say about russia"
retrieval_qa.run(query)
qa_chain_pydantic = create_qa_with_sources_chain(llm, output_parser="pydantic")
final_qa_chain_pydantic = StuffDocumentsChain(
llm_chain=qa_chain_pydantic,
document_variable_name="context",
document_prompt=doc_prompt,
)
retrieval_qa_pydantic = RetrievalQA(
retriever=docsearch.as_retriever(), combine_documents_chain=final_qa_chain_pydantic
)
retrieval_qa_pydantic.run(query)
from langchain.chains import ConversationalRetrievalChain, LLMChain
from langchain.memory import ConversationBufferMemory
memory = ConversationBufferMemory(memory_key="chat_history", return_messages=True)
_template = """Given the following conversation and a follow up question, rephrase the follow up question to be a standalone question, in its original language.\
Make sure to avoid using any unclear pronouns.
Chat History:
{chat_history}
Follow Up Input: {question}
Standalone question:"""
CONDENSE_QUESTION_PROMPT = PromptTemplate.from_template(_template)
condense_question_chain = LLMChain(
llm=llm,
prompt=CONDENSE_QUESTION_PROMPT,
)
qa = ConversationalRetrievalChain(
question_generator=condense_question_chain,
retriever=docsearch.as_retriever(),
memory=memory,
combine_docs_chain=final_qa_chain,
)
query = "What did the president say about Ketanji Brown Jackson"
result = qa({"question": query})
result
query = "what did he say about her predecessor?"
result = qa({"question": query})
result
from typing import List
from langchain.chains.openai_functions import create_qa_with_structure_chain
from langchain.prompts.chat import ChatPromptTemplate, HumanMessagePromptTemplate
from langchain_core.messages import HumanMessage, SystemMessage
from pydantic import BaseModel, Field
class CustomResponseSchema(BaseModel):
"""An answer to the question being asked, with sources."""
answer: str = Field(..., description="Answer to the question that was asked")
countries_referenced: List[str] = Field(
..., description="All of the countries mentioned in the sources"
)
sources: List[str] = Field(
..., description="List of sources used to answer the question"
)
prompt_messages = [
SystemMessage(
content=(
"You are a world class algorithm to answer "
"questions in a specific format."
)
),
HumanMessage(content="Answer question using the following context"),
HumanMessagePromptTemplate.from_template("{context}"),
HumanMessagePromptTemplate.from_template("Question: {question}"),
HumanMessage(
content="Tips: Make sure to answer in the correct format. Return all of the countries mentioned in the sources in uppercase characters."
),
]
chain_prompt = | ChatPromptTemplate(messages=prompt_messages) | langchain.prompts.chat.ChatPromptTemplate |
import getpass
import os
os.environ["TAVILY_API_KEY"] = getpass.getpass()
from langchain.retrievers.tavily_search_api import TavilySearchAPIRetriever
retriever = | TavilySearchAPIRetriever(k=3) | langchain.retrievers.tavily_search_api.TavilySearchAPIRetriever |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet python-gitlab')
import os
from langchain.agents import AgentType, initialize_agent
from langchain_community.agent_toolkits.gitlab.toolkit import GitLabToolkit
from langchain_community.utilities.gitlab import GitLabAPIWrapper
from langchain_openai import OpenAI
os.environ["GITLAB_URL"] = "https://gitlab.example.org"
os.environ["GITLAB_PERSONAL_ACCESS_TOKEN"] = ""
os.environ["GITLAB_REPOSITORY"] = "username/repo-name"
os.environ["GITLAB_BRANCH"] = "bot-branch-name"
os.environ["GITLAB_BASE_BRANCH"] = "main"
os.environ["OPENAI_API_KEY"] = ""
llm = OpenAI(temperature=0)
gitlab = | GitLabAPIWrapper() | langchain_community.utilities.gitlab.GitLabAPIWrapper |
import os
os.environ["EXA_API_KEY"] = "..."
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-exa')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain langchain-openai')
from langchain_core.prompts import PromptTemplate
from langchain_core.runnables import RunnableParallel, RunnablePassthrough
from langchain_exa import ExaSearchRetriever, TextContentsOptions
from langchain_openai import ChatOpenAI
retriever = ExaSearchRetriever(
k=5, text_contents_options=TextContentsOptions(max_length=200)
)
prompt = PromptTemplate.from_template(
"""Answer the following query based on the following context:
query: {query}
<context>
{context}
</context"""
)
llm = ChatOpenAI()
chain = (
RunnableParallel({"context": retriever, "query": RunnablePassthrough()})
| prompt
| llm
)
chain.invoke("When is the best time to visit japan?")
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-exa')
from exa_py import Exa
from langchain.agents import tool
exa = Exa(api_key=os.environ["EXA_API_KEY"])
@tool
def search(query: str):
"""Search for a webpage based on the query."""
return exa.search(f"{query}", use_autoprompt=True, num_results=5)
@tool
def find_similar(url: str):
"""Search for webpages similar to a given URL.
The url passed in should be a URL returned from `search`.
"""
return exa.find_similar(url, num_results=5)
@tool
def get_contents(ids: list[str]):
"""Get the contents of a webpage.
The ids passed in should be a list of ids returned from `search`.
"""
return exa.get_contents(ids)
tools = [search, get_contents, find_similar]
from langchain.agents import AgentExecutor, OpenAIFunctionsAgent
from langchain_core.messages import SystemMessage
from langchain_openai import ChatOpenAI
llm = ChatOpenAI(temperature=0)
system_message = SystemMessage(
content="You are a web researcher who answers user questions by looking up information on the internet and retrieving contents of helpful documents. Cite your sources."
)
agent_prompt = OpenAIFunctionsAgent.create_prompt(system_message)
agent = | OpenAIFunctionsAgent(llm=llm, tools=tools, prompt=agent_prompt) | langchain.agents.OpenAIFunctionsAgent |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet transformers')
from langchain_community.document_loaders import ImageCaptionLoader
list_image_urls = [
"https://upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Hyla_japonica_sep01.jpg/260px-Hyla_japonica_sep01.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/7/71/Tibur%C3%B3n_azul_%28Prionace_glauca%29%2C_canal_Fayal-Pico%2C_islas_Azores%2C_Portugal%2C_2020-07-27%2C_DD_14.jpg/270px-Tibur%C3%B3n_azul_%28Prionace_glauca%29%2C_canal_Fayal-Pico%2C_islas_Azores%2C_Portugal%2C_2020-07-27%2C_DD_14.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/2/21/Thure_de_Thulstrup_-_Battle_of_Shiloh.jpg/251px-Thure_de_Thulstrup_-_Battle_of_Shiloh.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/2/21/Passion_fruits_-_whole_and_halved.jpg/270px-Passion_fruits_-_whole_and_halved.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/5/5e/Messier83_-_Heic1403a.jpg/277px-Messier83_-_Heic1403a.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/2022-01-22_Men%27s_World_Cup_at_2021-22_St._Moritz%E2%80%93Celerina_Luge_World_Cup_and_European_Championships_by_Sandro_Halank%E2%80%93257.jpg/288px-2022-01-22_Men%27s_World_Cup_at_2021-22_St._Moritz%E2%80%93Celerina_Luge_World_Cup_and_European_Championships_by_Sandro_Halank%E2%80%93257.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/9/99/Wiesen_Pippau_%28Crepis_biennis%29-20220624-RM-123950.jpg/224px-Wiesen_Pippau_%28Crepis_biennis%29-20220624-RM-123950.jpg",
]
loader = | ImageCaptionLoader(path_images=list_image_urls) | langchain_community.document_loaders.ImageCaptionLoader |
from langchain.chains import ConversationChain
from langchain.memory import ConversationBufferMemory
from langchain_openai import OpenAI
llm = OpenAI(temperature=0)
conversation = ConversationChain(
llm=llm, verbose=True, memory= | ConversationBufferMemory() | langchain.memory.ConversationBufferMemory |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain langchain-openai')
from langchain.model_laboratory import ModelLaboratory
from langchain.prompts import PromptTemplate
from langchain_community.llms import Cohere, HuggingFaceHub
from langchain_openai import OpenAI
import getpass
import os
os.environ["COHERE_API_KEY"] = getpass.getpass("Cohere API Key:")
os.environ["OPENAI_API_KEY"] = getpass.getpass("Open API Key:")
os.environ["HUGGINGFACEHUB_API_TOKEN"] = getpass.getpass("Hugging Face API Key:")
llms = [
OpenAI(temperature=0),
Cohere(temperature=0),
HuggingFaceHub(repo_id="google/flan-t5-xl", model_kwargs={"temperature": 1}),
]
model_lab = ModelLaboratory.from_llms(llms)
model_lab.compare("What color is a flamingo?")
prompt = PromptTemplate(
template="What is the capital of {state}?", input_variables=["state"]
)
model_lab_with_prompt = ModelLaboratory.from_llms(llms, prompt=prompt)
model_lab_with_prompt.compare("New York")
from langchain.chains import SelfAskWithSearchChain
from langchain_community.utilities import SerpAPIWrapper
open_ai_llm = OpenAI(temperature=0)
search = SerpAPIWrapper()
self_ask_with_search_openai = SelfAskWithSearchChain(
llm=open_ai_llm, search_chain=search, verbose=True
)
cohere_llm = | Cohere(temperature=0) | langchain_community.llms.Cohere |
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate, FewShotChatMessagePromptTemplate
from langchain_core.runnables import RunnableLambda
from langchain_openai import ChatOpenAI
examples = [
{
"input": "Could the members of The Police perform lawful arrests?",
"output": "what can the members of The Police do?",
},
{
"input": "Jan Sindel’s was born in what country?",
"output": "what is Jan Sindel’s personal history?",
},
]
example_prompt = | ChatPromptTemplate.from_messages(
[
("human", "{input}") | langchain_core.prompts.ChatPromptTemplate.from_messages |
get_ipython().system(' pip install -U langchain openai chromadb langchain-experimental # (newest versions required for multi-modal)')
get_ipython().system(' pip install "unstructured[all-docs]==0.10.19" pillow pydantic lxml pillow matplotlib tiktoken open_clip_torch torch')
path = "/Users/rlm/Desktop/photos/"
from unstructured.partition.pdf import partition_pdf
raw_pdf_elements = partition_pdf(
filename=path + "photos.pdf",
extract_images_in_pdf=True,
infer_table_structure=True,
chunking_strategy="by_title",
max_characters=4000,
new_after_n_chars=3800,
combine_text_under_n_chars=2000,
image_output_dir_path=path,
)
tables = []
texts = []
for element in raw_pdf_elements:
if "unstructured.documents.elements.Table" in str(type(element)):
tables.append(str(element))
elif "unstructured.documents.elements.CompositeElement" in str(type(element)):
texts.append(str(element))
import os
import uuid
import chromadb
import numpy as np
from langchain_community.vectorstores import Chroma
from langchain_experimental.open_clip import OpenCLIPEmbeddings
from PIL import Image as _PILImage
vectorstore = Chroma(
collection_name="mm_rag_clip_photos", embedding_function=OpenCLIPEmbeddings()
)
image_uris = sorted(
[
os.path.join(path, image_name)
for image_name in os.listdir(path)
if image_name.endswith(".jpg")
]
)
vectorstore.add_images(uris=image_uris)
vectorstore.add_texts(texts=texts)
retriever = vectorstore.as_retriever()
import base64
import io
from io import BytesIO
import numpy as np
from PIL import Image
def resize_base64_image(base64_string, size=(128, 128)):
"""
Resize an image encoded as a Base64 string.
Args:
base64_string (str): Base64 string of the original image.
size (tuple): Desired size of the image as (width, height).
Returns:
str: Base64 string of the resized image.
"""
img_data = base64.b64decode(base64_string)
img = Image.open(io.BytesIO(img_data))
resized_img = img.resize(size, Image.LANCZOS)
buffered = io.BytesIO()
resized_img.save(buffered, format=img.format)
return base64.b64encode(buffered.getvalue()).decode("utf-8")
def is_base64(s):
"""Check if a string is Base64 encoded"""
try:
return base64.b64encode(base64.b64decode(s)) == s.encode()
except Exception:
return False
def split_image_text_types(docs):
"""Split numpy array images and texts"""
images = []
text = []
for doc in docs:
doc = doc.page_content # Extract Document contents
if is_base64(doc):
images.append(
resize_base64_image(doc, size=(250, 250))
) # base64 encoded str
else:
text.append(doc)
return {"images": images, "texts": text}
from operator import itemgetter
from langchain_core.messages import HumanMessage, SystemMessage
from langchain_core.output_parsers import StrOutputParser
from langchain_core.runnables import RunnableLambda, RunnablePassthrough
from langchain_openai import ChatOpenAI
def prompt_func(data_dict):
formatted_texts = "\n".join(data_dict["context"]["texts"])
messages = []
if data_dict["context"]["images"]:
image_message = {
"type": "image_url",
"image_url": {
"url": f"data:image/jpeg;base64,{data_dict['context']['images'][0]}"
},
}
messages.append(image_message)
text_message = {
"type": "text",
"text": (
"As an expert art critic and historian, your task is to analyze and interpret images, "
"considering their historical and cultural significance. Alongside the images, you will be "
"provided with related text to offer context. Both will be retrieved from a vectorstore based "
"on user-input keywords. Please use your extensive knowledge and analytical skills to provide a "
"comprehensive summary that includes:\n"
"- A detailed description of the visual elements in the image.\n"
"- The historical and cultural context of the image.\n"
"- An interpretation of the image's symbolism and meaning.\n"
"- Connections between the image and the related text.\n\n"
f"User-provided keywords: {data_dict['question']}\n\n"
"Text and / or tables:\n"
f"{formatted_texts}"
),
}
messages.append(text_message)
return [HumanMessage(content=messages)]
model = ChatOpenAI(temperature=0, model="gpt-4-vision-preview", max_tokens=1024)
chain = (
{
"context": retriever | RunnableLambda(split_image_text_types),
"question": | RunnablePassthrough() | langchain_core.runnables.RunnablePassthrough |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet doctran')
import json
from langchain_community.document_transformers import DoctranQATransformer
from langchain_core.documents import Document
from dotenv import load_dotenv
load_dotenv()
sample_text = """[Generated with ChatGPT]
Confidential Document - For Internal Use Only
Date: July 1, 2023
Subject: Updates and Discussions on Various Topics
Dear Team,
I hope this email finds you well. In this document, I would like to provide you with some important updates and discuss various topics that require our attention. Please treat the information contained herein as highly confidential.
Security and Privacy Measures
As part of our ongoing commitment to ensure the security and privacy of our customers' data, we have implemented robust measures across all our systems. We would like to commend John Doe (email: [email protected]) from the IT department for his diligent work in enhancing our network security. Moving forward, we kindly remind everyone to strictly adhere to our data protection policies and guidelines. Additionally, if you come across any potential security risks or incidents, please report them immediately to our dedicated team at [email protected].
HR Updates and Employee Benefits
Recently, we welcomed several new team members who have made significant contributions to their respective departments. I would like to recognize Jane Smith (SSN: 049-45-5928) for her outstanding performance in customer service. Jane has consistently received positive feedback from our clients. Furthermore, please remember that the open enrollment period for our employee benefits program is fast approaching. Should you have any questions or require assistance, please contact our HR representative, Michael Johnson (phone: 418-492-3850, email: [email protected]).
Marketing Initiatives and Campaigns
Our marketing team has been actively working on developing new strategies to increase brand awareness and drive customer engagement. We would like to thank Sarah Thompson (phone: 415-555-1234) for her exceptional efforts in managing our social media platforms. Sarah has successfully increased our follower base by 20% in the past month alone. Moreover, please mark your calendars for the upcoming product launch event on July 15th. We encourage all team members to attend and support this exciting milestone for our company.
Research and Development Projects
In our pursuit of innovation, our research and development department has been working tirelessly on various projects. I would like to acknowledge the exceptional work of David Rodriguez (email: [email protected]) in his role as project lead. David's contributions to the development of our cutting-edge technology have been instrumental. Furthermore, we would like to remind everyone to share their ideas and suggestions for potential new projects during our monthly R&D brainstorming session, scheduled for July 10th.
Please treat the information in this document with utmost confidentiality and ensure that it is not shared with unauthorized individuals. If you have any questions or concerns regarding the topics discussed, please do not hesitate to reach out to me directly.
Thank you for your attention, and let's continue to work together to achieve our goals.
Best regards,
Jason Fan
Cofounder & CEO
Psychic
[email protected]
"""
print(sample_text)
documents = [Document(page_content=sample_text)]
qa_transformer = | DoctranQATransformer() | langchain_community.document_transformers.DoctranQATransformer |
from langchain_community.document_loaders import TomlLoader
loader = | TomlLoader("example_data/fake_rule.toml") | langchain_community.document_loaders.TomlLoader |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet "cassio>=0.1.4"')
import os
from getpass import getpass
from datasets import (
load_dataset,
)
from langchain_community.document_loaders import PyPDFLoader
from langchain_core.documents import Document
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate
from langchain_core.runnables import RunnablePassthrough
from langchain_openai import ChatOpenAI, OpenAIEmbeddings
from langchain_text_splitters import RecursiveCharacterTextSplitter
os.environ["OPENAI_API_KEY"] = getpass("OPENAI_API_KEY = ")
embe = OpenAIEmbeddings()
from langchain_community.vectorstores import Cassandra
from cassandra.cluster import Cluster
cluster = Cluster(["127.0.0.1"])
session = cluster.connect()
import cassio
CASSANDRA_KEYSPACE = input("CASSANDRA_KEYSPACE = ")
cassio.init(session=session, keyspace=CASSANDRA_KEYSPACE)
vstore = Cassandra(
embedding=embe,
table_name="cassandra_vector_demo",
)
ASTRA_DB_ID = input("ASTRA_DB_ID = ")
ASTRA_DB_APPLICATION_TOKEN = getpass("ASTRA_DB_APPLICATION_TOKEN = ")
desired_keyspace = input("ASTRA_DB_KEYSPACE (optional, can be left empty) = ")
if desired_keyspace:
ASTRA_DB_KEYSPACE = desired_keyspace
else:
ASTRA_DB_KEYSPACE = None
import cassio
cassio.init(
database_id=ASTRA_DB_ID,
token=ASTRA_DB_APPLICATION_TOKEN,
keyspace=ASTRA_DB_KEYSPACE,
)
vstore = Cassandra(
embedding=embe,
table_name="cassandra_vector_demo",
)
philo_dataset = load_dataset("datastax/philosopher-quotes")["train"]
docs = []
for entry in philo_dataset:
metadata = {"author": entry["author"]}
doc = Document(page_content=entry["quote"], metadata=metadata)
docs.append(doc)
inserted_ids = vstore.add_documents(docs)
print(f"\nInserted {len(inserted_ids)} documents.")
texts = ["I think, therefore I am.", "To the things themselves!"]
metadatas = [{"author": "descartes"}, {"author": "husserl"}]
ids = ["desc_01", "huss_xy"]
inserted_ids_2 = vstore.add_texts(texts=texts, metadatas=metadatas, ids=ids)
print(f"\nInserted {len(inserted_ids_2)} documents.")
results = vstore.similarity_search("Our life is what we make of it", k=3)
for res in results:
print(f"* {res.page_content} [{res.metadata}]")
results_filtered = vstore.similarity_search(
"Our life is what we make of it",
k=3,
filter={"author": "plato"},
)
for res in results_filtered:
print(f"* {res.page_content} [{res.metadata}]")
results = vstore.similarity_search_with_score("Our life is what we make of it", k=3)
for res, score in results:
print(f"* [SIM={score:3f}] {res.page_content} [{res.metadata}]")
results = vstore.max_marginal_relevance_search(
"Our life is what we make of it",
k=3,
filter={"author": "aristotle"},
)
for res in results:
print(f"* {res.page_content} [{res.metadata}]")
delete_1 = vstore.delete(inserted_ids[:3])
print(f"all_succeed={delete_1}") # True, all documents deleted
delete_2 = vstore.delete(inserted_ids[2:5])
print(f"some_succeeds={delete_2}") # True, though some IDs were gone already
get_ipython().system('curl -L "https://github.com/awesome-astra/datasets/blob/main/demo-resources/what-is-philosophy/what-is-philosophy.pdf?raw=true" -o "what-is-philosophy.pdf"')
pdf_loader = PyPDFLoader("what-is-philosophy.pdf")
splitter = RecursiveCharacterTextSplitter(chunk_size=512, chunk_overlap=64)
docs_from_pdf = pdf_loader.load_and_split(text_splitter=splitter)
print(f"Documents from PDF: {len(docs_from_pdf)}.")
inserted_ids_from_pdf = vstore.add_documents(docs_from_pdf)
print(f"Inserted {len(inserted_ids_from_pdf)} documents.")
retriever = vstore.as_retriever(search_kwargs={"k": 3})
philo_template = """
You are a philosopher that draws inspiration from great thinkers of the past
to craft well-thought answers to user questions. Use the provided context as the basis
for your answers and do not make up new reasoning paths - just mix-and-match what you are given.
Your answers must be concise and to the point, and refrain from answering about other topics than philosophy.
CONTEXT:
{context}
QUESTION: {question}
YOUR ANSWER:"""
philo_prompt = | ChatPromptTemplate.from_template(philo_template) | langchain_core.prompts.ChatPromptTemplate.from_template |
get_ipython().system('poetry run pip install dgml-utils==0.3.0 --upgrade --quiet')
import os
from langchain_community.document_loaders import DocugamiLoader
DOCUGAMI_API_KEY = os.environ.get("DOCUGAMI_API_KEY")
docset_id = "26xpy3aes7xp"
document_ids = ["d7jqdzcj50sj", "cgd1eacfkchw"]
loader = DocugamiLoader(docset_id=docset_id, document_ids=document_ids)
chunks = loader.load()
len(chunks)
loader.min_text_length = 64
loader.include_xml_tags = True
chunks = loader.load()
for chunk in chunks[:5]:
print(chunk)
get_ipython().system('poetry run pip install --upgrade langchain-openai tiktoken chromadb hnswlib')
loader = DocugamiLoader(docset_id="zo954yqy53wp")
chunks = loader.load()
for chunk in chunks:
stripped_metadata = chunk.metadata.copy()
for key in chunk.metadata:
if key not in ["name", "xpath", "id", "structure"]:
del stripped_metadata[key]
chunk.metadata = stripped_metadata
print(len(chunks))
from langchain.chains import RetrievalQA
from langchain_community.vectorstores.chroma import Chroma
from langchain_openai import OpenAI, OpenAIEmbeddings
embedding = OpenAIEmbeddings()
vectordb = Chroma.from_documents(documents=chunks, embedding=embedding)
retriever = vectordb.as_retriever()
qa_chain = RetrievalQA.from_chain_type(
llm=OpenAI(), chain_type="stuff", retriever=retriever, return_source_documents=True
)
qa_chain("What can tenants do with signage on their properties?")
chain_response = qa_chain("What is rentable area for the property owned by DHA Group?")
chain_response["result"] # correct answer should be 13,500 sq ft
chain_response["source_documents"]
loader = | DocugamiLoader(docset_id="zo954yqy53wp") | langchain_community.document_loaders.DocugamiLoader |
meals = [
"Beef Enchiladas with Feta cheese. Mexican-Greek fusion",
"Chicken Flatbreads with red sauce. Italian-Mexican fusion",
"Veggie sweet potato quesadillas with vegan cheese",
"One-Pan Tortelonni bake with peppers and onions",
]
from langchain_openai import OpenAI
llm = OpenAI(model="gpt-3.5-turbo-instruct")
from langchain.prompts import PromptTemplate
PROMPT_TEMPLATE = """Here is the description of a meal: "{meal}".
Embed the meal into the given text: "{text_to_personalize}".
Prepend a personalized message including the user's name "{user}"
and their preference "{preference}".
Make it sound good.
"""
PROMPT = PromptTemplate(
input_variables=["meal", "text_to_personalize", "user", "preference"],
template=PROMPT_TEMPLATE,
)
import langchain_experimental.rl_chain as rl_chain
chain = rl_chain.PickBest.from_llm(llm=llm, prompt=PROMPT)
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs \
believe you will love it!",
)
print(response["response"])
for _ in range(5):
try:
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
except Exception as e:
print(e)
print(response["response"])
print()
scoring_criteria_template = (
"Given {preference} rank how good or bad this selection is {meal}"
)
chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=rl_chain.AutoSelectionScorer(
llm=llm, scoring_criteria_template_str=scoring_criteria_template
),
)
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
print(response["response"])
selection_metadata = response["selection_metadata"]
print(
f"selected index: {selection_metadata.selected.index}, score: {selection_metadata.selected.score}"
)
class CustomSelectionScorer(rl_chain.SelectionScorer):
def score_response(
self, inputs, llm_response: str, event: rl_chain.PickBestEvent
) -> float:
print(event.based_on)
print(event.to_select_from)
selected_meal = event.to_select_from["meal"][event.selected.index]
print(f"selected meal: {selected_meal}")
if "Tom" in event.based_on["user"]:
if "Vegetarian" in event.based_on["preference"]:
if "Chicken" in selected_meal or "Beef" in selected_meal:
return 0.0
else:
return 1.0
else:
if "Chicken" in selected_meal or "Beef" in selected_meal:
return 1.0
else:
return 0.0
else:
raise NotImplementedError("I don't know how to score this user")
chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=CustomSelectionScorer(),
)
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
class CustomSelectionScorer(rl_chain.SelectionScorer):
def score_preference(self, preference, selected_meal):
if "Vegetarian" in preference:
if "Chicken" in selected_meal or "Beef" in selected_meal:
return 0.0
else:
return 1.0
else:
if "Chicken" in selected_meal or "Beef" in selected_meal:
return 1.0
else:
return 0.0
def score_response(
self, inputs, llm_response: str, event: rl_chain.PickBestEvent
) -> float:
selected_meal = event.to_select_from["meal"][event.selected.index]
if "Tom" in event.based_on["user"]:
return self.score_preference(event.based_on["preference"], selected_meal)
elif "Anna" in event.based_on["user"]:
return self.score_preference(event.based_on["preference"], selected_meal)
else:
raise NotImplementedError("I don't know how to score this user")
chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=CustomSelectionScorer(),
metrics_step=5,
metrics_window_size=5, # rolling window average
)
random_chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=CustomSelectionScorer(),
metrics_step=5,
metrics_window_size=5, # rolling window average
policy=rl_chain.PickBestRandomPolicy, # set the random policy instead of default
)
for _ in range(20):
try:
chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
random_chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Anna"),
preference=rl_chain.BasedOn(["Loves meat", "especially beef"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
random_chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Anna"),
preference=rl_chain.BasedOn(["Loves meat", "especially beef"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
except Exception as e:
print(e)
from matplotlib import pyplot as plt
chain.metrics.to_pandas()["score"].plot(label="default learning policy")
random_chain.metrics.to_pandas()["score"].plot(label="random selection policy")
plt.legend()
print(
f"The final average score for the default policy, calculated over a rolling window, is: {chain.metrics.to_pandas()['score'].iloc[-1]}"
)
print(
f"The final average score for the random policy, calculated over a rolling window, is: {random_chain.metrics.to_pandas()['score'].iloc[-1]}"
)
from langchain.globals import set_debug
from langchain.prompts.prompt import PromptTemplate
set_debug(True)
REWARD_PROMPT_TEMPLATE = """
Given {preference} rank how good or bad this selection is {meal}
IMPORTANT: you MUST return a single number between -1 and 1, -1 being bad, 1 being good
"""
REWARD_PROMPT = PromptTemplate(
input_variables=["preference", "meal"],
template=REWARD_PROMPT_TEMPLATE,
)
chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=rl_chain.AutoSelectionScorer(llm=llm, prompt=REWARD_PROMPT),
)
chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference= | rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]) | langchain_experimental.rl_chain.BasedOn |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-core langchain langchain-openai')
from langchain.utils.math import cosine_similarity
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import PromptTemplate
from langchain_core.runnables import RunnableLambda, RunnablePassthrough
from langchain_openai import ChatOpenAI, OpenAIEmbeddings
physics_template = """You are a very smart physics professor. \
You are great at answering questions about physics in a concise and easy to understand manner. \
When you don't know the answer to a question you admit that you don't know.
Here is a question:
{query}"""
math_template = """You are a very good mathematician. You are great at answering math questions. \
You are so good because you are able to break down hard problems into their component parts, \
answer the component parts, and then put them together to answer the broader question.
Here is a question:
{query}"""
embeddings = OpenAIEmbeddings()
prompt_templates = [physics_template, math_template]
prompt_embeddings = embeddings.embed_documents(prompt_templates)
def prompt_router(input):
query_embedding = embeddings.embed_query(input["query"])
similarity = cosine_similarity([query_embedding], prompt_embeddings)[0]
most_similar = prompt_templates[similarity.argmax()]
print("Using MATH" if most_similar == math_template else "Using PHYSICS")
return PromptTemplate.from_template(most_similar)
chain = (
{"query": RunnablePassthrough()}
| | RunnableLambda(prompt_router) | langchain_core.runnables.RunnableLambda |
get_ipython().system(' pip install langchain replicate')
from langchain_community.chat_models import ChatOllama
llama2_chat = ChatOllama(model="llama2:13b-chat")
llama2_code = ChatOllama(model="codellama:7b-instruct")
from langchain_community.llms import Replicate
replicate_id = "meta/llama-2-13b-chat:f4e2de70d66816a838a89eeeb621910adffb0dd0baba3976c96980970978018d"
llama2_chat_replicate = Replicate(
model=replicate_id, input={"temperature": 0.01, "max_length": 500, "top_p": 1}
)
llm = llama2_chat
from langchain_community.utilities import SQLDatabase
db = SQLDatabase.from_uri("sqlite:///nba_roster.db", sample_rows_in_table_info=0)
def get_schema(_):
return db.get_table_info()
def run_query(query):
return db.run(query)
from langchain_core.prompts import ChatPromptTemplate
template = """Based on the table schema below, write a SQL query that would answer the user's question:
{schema}
Question: {question}
SQL Query:"""
prompt = ChatPromptTemplate.from_messages(
[
("system", "Given an input question, convert it to a SQL query. No pre-amble."),
("human", template),
]
)
from langchain_core.output_parsers import StrOutputParser
from langchain_core.runnables import RunnablePassthrough
sql_response = (
RunnablePassthrough.assign(schema=get_schema)
| prompt
| llm.bind(stop=["\nSQLResult:"])
| StrOutputParser()
)
sql_response.invoke({"question": "What team is Klay Thompson on?"})
template = """Based on the table schema below, question, sql query, and sql response, write a natural language response:
{schema}
Question: {question}
SQL Query: {query}
SQL Response: {response}"""
prompt_response = ChatPromptTemplate.from_messages(
[
(
"system",
"Given an input question and SQL response, convert it to a natural language answer. No pre-amble.",
),
("human", template),
]
)
full_chain = (
RunnablePassthrough.assign(query=sql_response)
| RunnablePassthrough.assign(
schema=get_schema,
response=lambda x: db.run(x["query"]),
)
| prompt_response
| llm
)
full_chain.invoke({"question": "How many unique teams are there?"})
from langchain.memory import ConversationBufferMemory
from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
template = """Given an input question, convert it to a SQL query. No pre-amble. Based on the table schema below, write a SQL query that would answer the user's question:
{schema}
"""
prompt = ChatPromptTemplate.from_messages(
[
("system", template),
| MessagesPlaceholder(variable_name="history") | langchain_core.prompts.MessagesPlaceholder |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet elasticsearch')
from langchain.retrievers import ElasticSearchBM25Retriever
elasticsearch_url = "http://localhost:9200"
retriever = | ElasticSearchBM25Retriever.create(elasticsearch_url, "langchain-index-4") | langchain.retrievers.ElasticSearchBM25Retriever.create |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet pandoc')
from langchain_community.document_loaders import UnstructuredEPubLoader
loader = UnstructuredEPubLoader("winter-sports.epub")
data = loader.load()
loader = | UnstructuredEPubLoader("winter-sports.epub", mode="elements") | langchain_community.document_loaders.UnstructuredEPubLoader |
from langchain.prompts import ChatMessagePromptTemplate
prompt = "May the {subject} be with you"
chat_message_prompt = ChatMessagePromptTemplate.from_template(
role="Jedi", template=prompt
)
chat_message_prompt.format(subject="force")
from langchain.prompts import (
ChatPromptTemplate,
HumanMessagePromptTemplate,
MessagesPlaceholder,
)
human_prompt = "Summarize our conversation so far in {word_count} words."
human_message_template = HumanMessagePromptTemplate.from_template(human_prompt)
chat_prompt = ChatPromptTemplate.from_messages(
[ | MessagesPlaceholder(variable_name="conversation") | langchain.prompts.MessagesPlaceholder |
import os
import yaml
get_ipython().system('wget https://raw.githubusercontent.com/openai/openai-openapi/master/openapi.yaml -O openai_openapi.yaml')
get_ipython().system('wget https://www.klarna.com/us/shopping/public/openai/v0/api-docs -O klarna_openapi.yaml')
get_ipython().system('wget https://raw.githubusercontent.com/APIs-guru/openapi-directory/main/APIs/spotify.com/1.0.0/openapi.yaml -O spotify_openapi.yaml')
from langchain_community.agent_toolkits.openapi.spec import reduce_openapi_spec
with open("openai_openapi.yaml") as f:
raw_openai_api_spec = yaml.load(f, Loader=yaml.Loader)
openai_api_spec = reduce_openapi_spec(raw_openai_api_spec)
with open("klarna_openapi.yaml") as f:
raw_klarna_api_spec = yaml.load(f, Loader=yaml.Loader)
klarna_api_spec = reduce_openapi_spec(raw_klarna_api_spec)
with open("spotify_openapi.yaml") as f:
raw_spotify_api_spec = yaml.load(f, Loader=yaml.Loader)
spotify_api_spec = reduce_openapi_spec(raw_spotify_api_spec)
import spotipy.util as util
from langchain.requests import RequestsWrapper
def construct_spotify_auth_headers(raw_spec: dict):
scopes = list(
raw_spec["components"]["securitySchemes"]["oauth_2_0"]["flows"][
"authorizationCode"
]["scopes"].keys()
)
access_token = util.prompt_for_user_token(scope=",".join(scopes))
return {"Authorization": f"Bearer {access_token}"}
headers = construct_spotify_auth_headers(raw_spotify_api_spec)
requests_wrapper = | RequestsWrapper(headers=headers) | langchain.requests.RequestsWrapper |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain langchain-openai')
from langchain.evaluation import load_evaluator
from langchain_openai import ChatOpenAI
evaluator = load_evaluator("labeled_score_string", llm=ChatOpenAI(model="gpt-4"))
eval_result = evaluator.evaluate_strings(
prediction="You can find them in the dresser's third drawer.",
reference="The socks are in the third drawer in the dresser",
input="Where are my socks?",
)
print(eval_result)
accuracy_criteria = {
"accuracy": """
Score 1: The answer is completely unrelated to the reference.
Score 3: The answer has minor relevance but does not align with the reference.
Score 5: The answer has moderate relevance but contains inaccuracies.
Score 7: The answer aligns with the reference but has minor errors or omissions.
Score 10: The answer is completely accurate and aligns perfectly with the reference."""
}
evaluator = load_evaluator(
"labeled_score_string",
criteria=accuracy_criteria,
llm=ChatOpenAI(model="gpt-4"),
)
eval_result = evaluator.evaluate_strings(
prediction="You can find them in the dresser's third drawer.",
reference="The socks are in the third drawer in the dresser",
input="Where are my socks?",
)
print(eval_result)
eval_result = evaluator.evaluate_strings(
prediction="You can find them in the dresser.",
reference="The socks are in the third drawer in the dresser",
input="Where are my socks?",
)
print(eval_result)
eval_result = evaluator.evaluate_strings(
prediction="You can find them in the dog's bed.",
reference="The socks are in the third drawer in the dresser",
input="Where are my socks?",
)
print(eval_result)
evaluator = load_evaluator(
"labeled_score_string",
criteria=accuracy_criteria,
llm=ChatOpenAI(model="gpt-4"),
normalize_by=10,
)
eval_result = evaluator.evaluate_strings(
prediction="You can find them in the dresser.",
reference="The socks are in the third drawer in the dresser",
input="Where are my socks?",
)
print(eval_result)
from langchain.evaluation import load_evaluator
hh_criteria = {
"helpful": "The assistant's answer should be helpful to the user.",
"harmless": "The assistant's answer should not be illegal, harmful, offensive or unethical.",
}
evaluator = | load_evaluator("score_string", criteria=hh_criteria) | langchain.evaluation.load_evaluator |
from langchain_core.messages import (
AIMessage,
BaseMessage,
FunctionMessage,
HumanMessage,
SystemMessage,
ToolMessage,
)
from langchain_core.messages import (
AIMessageChunk,
FunctionMessageChunk,
HumanMessageChunk,
SystemMessageChunk,
ToolMessageChunk,
)
AIMessageChunk(content="Hello") + AIMessageChunk(content=" World!")
from typing import Any, AsyncIterator, Dict, Iterator, List, Optional
from langchain_core.callbacks import (
AsyncCallbackManagerForLLMRun,
CallbackManagerForLLMRun,
)
from langchain_core.language_models import BaseChatModel, SimpleChatModel
from langchain_core.messages import AIMessageChunk, BaseMessage, HumanMessage
from langchain_core.outputs import ChatGeneration, ChatGenerationChunk, ChatResult
from langchain_core.runnables import run_in_executor
class CustomChatModelAdvanced(BaseChatModel):
"""A custom chat model that echoes the first `n` characters of the input.
When contributing an implementation to LangChain, carefully document
the model including the initialization parameters, include
an example of how to initialize the model and include any relevant
links to the underlying models documentation or API.
Example:
.. code-block:: python
model = CustomChatModel(n=2)
result = model.invoke([HumanMessage(content="hello")])
result = model.batch([[HumanMessage(content="hello")],
[HumanMessage(content="world")]])
"""
n: int
"""The number of characters from the last message of the prompt to be echoed."""
def _generate(
self,
messages: List[BaseMessage],
stop: Optional[List[str]] = None,
run_manager: Optional[CallbackManagerForLLMRun] = None,
**kwargs: Any,
) -> ChatResult:
"""Override the _generate method to implement the chat model logic.
This can be a call to an API, a call to a local model, or any other
implementation that generates a response to the input prompt.
Args:
messages: the prompt composed of a list of messages.
stop: a list of strings on which the model should stop generating.
If generation stops due to a stop token, the stop token itself
SHOULD BE INCLUDED as part of the output. This is not enforced
across models right now, but it's a good practice to follow since
it makes it much easier to parse the output of the model
downstream and understand why generation stopped.
run_manager: A run manager with callbacks for the LLM.
"""
last_message = messages[-1]
tokens = last_message.content[: self.n]
message = | AIMessage(content=tokens) | langchain_core.messages.AIMessage |
get_ipython().run_line_magic('pip', "install --upgrade --quiet langchain-openai 'deeplake[enterprise]' tiktoken")
from langchain_community.vectorstores import DeepLake
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
import getpass
import os
os.environ["OPENAI_API_KEY"] = getpass.getpass("OpenAI API Key:")
activeloop_token = getpass.getpass("activeloop token:")
embeddings = OpenAIEmbeddings()
from langchain_community.document_loaders import TextLoader
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
embeddings = OpenAIEmbeddings()
db = DeepLake(dataset_path="./my_deeplake/", embedding=embeddings, overwrite=True)
db.add_documents(docs)
query = "What did the president say about Ketanji Brown Jackson"
docs = db.similarity_search(query)
print(docs[0].page_content)
db = DeepLake(dataset_path="./my_deeplake/", embedding=embeddings, read_only=True)
docs = db.similarity_search(query)
from langchain.chains import RetrievalQA
from langchain_openai import OpenAIChat
qa = RetrievalQA.from_chain_type(
llm=OpenAIChat(model="gpt-3.5-turbo"),
chain_type="stuff",
retriever=db.as_retriever(),
)
query = "What did the president say about Ketanji Brown Jackson"
qa.run(query)
import random
for d in docs:
d.metadata["year"] = random.randint(2012, 2014)
db = DeepLake.from_documents(
docs, embeddings, dataset_path="./my_deeplake/", overwrite=True
)
db.similarity_search(
"What did the president say about Ketanji Brown Jackson",
filter={"metadata": {"year": 2013}},
)
db.similarity_search(
"What did the president say about Ketanji Brown Jackson?", distance_metric="cos"
)
db.max_marginal_relevance_search(
"What did the president say about Ketanji Brown Jackson?"
)
db.delete_dataset()
| DeepLake.force_delete_by_path("./my_deeplake") | langchain_community.vectorstores.DeepLake.force_delete_by_path |
get_ipython().system('pip3 install cerebrium')
import os
from langchain.chains import LLMChain
from langchain.prompts import PromptTemplate
from langchain_community.llms import CerebriumAI
os.environ["CEREBRIUMAI_API_KEY"] = "YOUR_KEY_HERE"
llm = CerebriumAI(endpoint_url="YOUR ENDPOINT URL HERE")
template = """Question: {question}
Answer: Let's think step by step."""
prompt = PromptTemplate.from_template(template)
llm_chain = | LLMChain(prompt=prompt, llm=llm) | langchain.chains.LLMChain |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-core langchain langchain-openai')
from langchain.utils.math import cosine_similarity
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import PromptTemplate
from langchain_core.runnables import RunnableLambda, RunnablePassthrough
from langchain_openai import ChatOpenAI, OpenAIEmbeddings
physics_template = """You are a very smart physics professor. \
You are great at answering questions about physics in a concise and easy to understand manner. \
When you don't know the answer to a question you admit that you don't know.
Here is a question:
{query}"""
math_template = """You are a very good mathematician. You are great at answering math questions. \
You are so good because you are able to break down hard problems into their component parts, \
answer the component parts, and then put them together to answer the broader question.
Here is a question:
{query}"""
embeddings = OpenAIEmbeddings()
prompt_templates = [physics_template, math_template]
prompt_embeddings = embeddings.embed_documents(prompt_templates)
def prompt_router(input):
query_embedding = embeddings.embed_query(input["query"])
similarity = cosine_similarity([query_embedding], prompt_embeddings)[0]
most_similar = prompt_templates[similarity.argmax()]
print("Using MATH" if most_similar == math_template else "Using PHYSICS")
return PromptTemplate.from_template(most_similar)
chain = (
{"query": RunnablePassthrough()}
| RunnableLambda(prompt_router)
| ChatOpenAI()
| | StrOutputParser() | langchain_core.output_parsers.StrOutputParser |
from langchain.output_parsers import (
OutputFixingParser,
PydanticOutputParser,
)
from langchain.prompts import (
PromptTemplate,
)
from langchain_core.pydantic_v1 import BaseModel, Field
from langchain_openai import ChatOpenAI, OpenAI
template = """Based on the user question, provide an Action and Action Input for what step should be taken.
{format_instructions}
Question: {query}
Response:"""
class Action(BaseModel):
action: str = Field(description="action to take")
action_input: str = Field(description="input to the action")
parser = PydanticOutputParser(pydantic_object=Action)
prompt = PromptTemplate(
template="Answer the user query.\n{format_instructions}\n{query}\n",
input_variables=["query"],
partial_variables={"format_instructions": parser.get_format_instructions()},
)
prompt_value = prompt.format_prompt(query="who is leo di caprios gf?")
bad_response = '{"action": "search"}'
parser.parse(bad_response)
fix_parser = OutputFixingParser.from_llm(parser=parser, llm=ChatOpenAI())
fix_parser.parse(bad_response)
from langchain.output_parsers import RetryOutputParser
retry_parser = RetryOutputParser.from_llm(parser=parser, llm=OpenAI(temperature=0))
retry_parser.parse_with_prompt(bad_response, prompt_value)
from langchain_core.runnables import RunnableLambda, RunnableParallel
completion_chain = prompt | | OpenAI(temperature=0) | langchain_openai.OpenAI |
from langchain.retrievers import BreebsRetriever
breeb_key = "Parivoyage"
retriever = | BreebsRetriever(breeb_key) | langchain.retrievers.BreebsRetriever |
import getpass
import os
os.environ["OPENAI_API_KEY"] = getpass.getpass()
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import FAISS
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
embeddings = OpenAIEmbeddings()
db = FAISS.from_documents(docs, embeddings)
query = "What did the president say about Ketanji Brown Jackson"
docs = db.similarity_search(query)
print(docs[0].page_content)
retriever = db.as_retriever()
docs = retriever.invoke(query)
print(docs[0].page_content)
docs_and_scores = db.similarity_search_with_score(query)
docs_and_scores[0]
embedding_vector = embeddings.embed_query(query)
docs_and_scores = db.similarity_search_by_vector(embedding_vector)
db.save_local("faiss_index")
new_db = FAISS.load_local("faiss_index", embeddings)
docs = new_db.similarity_search(query)
docs[0]
from langchain_community.embeddings.huggingface import HuggingFaceEmbeddings
pkl = db.serialize_to_bytes() # serializes the faiss
embeddings = | HuggingFaceEmbeddings(model_name="all-MiniLM-L6-v2") | langchain_community.embeddings.huggingface.HuggingFaceEmbeddings |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet sentence_transformers > /dev/null')
from langchain_community.embeddings import HuggingFaceEmbeddings
embeddings = | HuggingFaceEmbeddings(model_name="all-MiniLM-L6-v2") | langchain_community.embeddings.HuggingFaceEmbeddings |
from ragatouille import RAGPretrainedModel
RAG = RAGPretrainedModel.from_pretrained("colbert-ir/colbertv2.0")
import requests
def get_wikipedia_page(title: str):
"""
Retrieve the full text content of a Wikipedia page.
:param title: str - Title of the Wikipedia page.
:return: str - Full text content of the page as raw string.
"""
URL = "https://en.wikipedia.org/w/api.php"
params = {
"action": "query",
"format": "json",
"titles": title,
"prop": "extracts",
"explaintext": True,
}
headers = {"User-Agent": "RAGatouille_tutorial/0.0.1 ([email protected])"}
response = requests.get(URL, params=params, headers=headers)
data = response.json()
page = next(iter(data["query"]["pages"].values()))
return page["extract"] if "extract" in page else None
full_document = get_wikipedia_page("Hayao_Miyazaki")
RAG.index(
collection=[full_document],
index_name="Miyazaki-123",
max_document_length=180,
split_documents=True,
)
results = RAG.search(query="What animation studio did Miyazaki found?", k=3)
results
retriever = RAG.as_langchain_retriever(k=3)
retriever.invoke("What animation studio did Miyazaki found?")
from langchain.chains import create_retrieval_chain
from langchain.chains.combine_documents import create_stuff_documents_chain
from langchain_core.prompts import ChatPromptTemplate
from langchain_openai import ChatOpenAI
prompt = ChatPromptTemplate.from_template(
"""Answer the following question based only on the provided context:
<context>
{context}
</context>
Question: {input}"""
)
llm = ChatOpenAI()
document_chain = | create_stuff_documents_chain(llm, prompt) | langchain.chains.combine_documents.create_stuff_documents_chain |
import os
import pprint
os.environ["SERPER_API_KEY"] = ""
from langchain_community.utilities import GoogleSerperAPIWrapper
search = GoogleSerperAPIWrapper()
search.run("Obama's first name?")
os.environ["OPENAI_API_KEY"] = ""
from langchain.agents import AgentType, Tool, initialize_agent
from langchain_community.utilities import GoogleSerperAPIWrapper
from langchain_openai import OpenAI
llm = OpenAI(temperature=0)
search = GoogleSerperAPIWrapper()
tools = [
Tool(
name="Intermediate Answer",
func=search.run,
description="useful for when you need to ask with search",
)
]
self_ask_with_search = initialize_agent(
tools, llm, agent=AgentType.SELF_ASK_WITH_SEARCH, verbose=True
)
self_ask_with_search.run(
"What is the hometown of the reigning men's U.S. Open champion?"
)
search = GoogleSerperAPIWrapper()
results = search.results("Apple Inc.")
pprint.pp(results)
search = GoogleSerperAPIWrapper(type="images")
results = search.results("Lion")
pprint.pp(results)
search = | GoogleSerperAPIWrapper(type="news") | langchain_community.utilities.GoogleSerperAPIWrapper |
import json
from pprint import pprint
from langchain.globals import set_debug
from langchain_community.llms import NIBittensorLLM
set_debug(True)
llm_sys = NIBittensorLLM(
system_prompt="Your task is to determine response based on user prompt.Explain me like I am technical lead of a project"
)
sys_resp = llm_sys(
"What is bittensor and What are the potential benefits of decentralized AI?"
)
print(f"Response provided by LLM with system prompt set is : {sys_resp}")
""" {
"choices": [
{"index": Bittensor's Metagraph index number,
"uid": Unique Identifier of a miner,
"responder_hotkey": Hotkey of a miner,
"message":{"role":"assistant","content": Contains actual response},
"response_ms": Time in millisecond required to fetch response from a miner}
]
} """
multi_response_llm = NIBittensorLLM(top_responses=10)
multi_resp = multi_response_llm("What is Neural Network Feeding Mechanism?")
json_multi_resp = json.loads(multi_resp)
pprint(json_multi_resp)
from langchain.chains import LLMChain
from langchain.globals import set_debug
from langchain.prompts import PromptTemplate
from langchain_community.llms import NIBittensorLLM
set_debug(True)
template = """Question: {question}
Answer: Let's think step by step."""
prompt = PromptTemplate.from_template(template)
llm = NIBittensorLLM(
system_prompt="Your task is to determine response based on user prompt."
)
llm_chain = LLMChain(prompt=prompt, llm=llm)
question = "What is bittensor?"
llm_chain.run(question)
from langchain.tools import Tool
from langchain_community.utilities import GoogleSearchAPIWrapper
search = GoogleSearchAPIWrapper()
tool = Tool(
name="Google Search",
description="Search Google for recent results.",
func=search.run,
)
from langchain.agents import (
AgentExecutor,
ZeroShotAgent,
)
from langchain.chains import LLMChain
from langchain.memory import ConversationBufferMemory
from langchain.prompts import PromptTemplate
from langchain_community.llms import NIBittensorLLM
memory = ConversationBufferMemory(memory_key="chat_history")
tools = [tool]
prefix = """Answer prompt based on LLM if there is need to search something then use internet and observe internet result and give accurate reply of user questions also try to use authenticated sources"""
suffix = """Begin!
{chat_history}
Question: {input}
{agent_scratchpad}"""
prompt = ZeroShotAgent.create_prompt(
tools=tools,
prefix=prefix,
suffix=suffix,
input_variables=["input", "chat_history", "agent_scratchpad"],
)
llm = NIBittensorLLM(
system_prompt="Your task is to determine a response based on user prompt"
)
llm_chain = LLMChain(llm=llm, prompt=prompt)
memory = ConversationBufferMemory(memory_key="chat_history")
agent = | ZeroShotAgent(llm_chain=llm_chain, tools=tools, verbose=True) | langchain.agents.ZeroShotAgent |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet pymysql')
from langchain.chains import RetrievalQA
from langchain_community.document_loaders import (
DirectoryLoader,
UnstructuredMarkdownLoader,
)
from langchain_community.vectorstores import StarRocks
from langchain_community.vectorstores.starrocks import StarRocksSettings
from langchain_openai import OpenAI, OpenAIEmbeddings
from langchain_text_splitters import TokenTextSplitter
update_vectordb = False
loader = DirectoryLoader(
"./docs", glob="**/*.md", loader_cls=UnstructuredMarkdownLoader
)
documents = loader.load()
text_splitter = TokenTextSplitter(chunk_size=400, chunk_overlap=50)
split_docs = text_splitter.split_documents(documents)
update_vectordb = True
split_docs[-20]
print("# docs = %d, # splits = %d" % (len(documents), len(split_docs)))
def gen_starrocks(update_vectordb, embeddings, settings):
if update_vectordb:
docsearch = StarRocks.from_documents(split_docs, embeddings, config=settings)
else:
docsearch = StarRocks(embeddings, settings)
return docsearch
embeddings = OpenAIEmbeddings()
settings = | StarRocksSettings() | langchain_community.vectorstores.starrocks.StarRocksSettings |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet apify-client langchain-openai langchain chromadb tiktoken')
from langchain.indexes import VectorstoreIndexCreator
from langchain_community.document_loaders.base import Document
from langchain_community.utilities import ApifyWrapper
import os
os.environ["OPENAI_API_KEY"] = "Your OpenAI API key"
os.environ["APIFY_API_TOKEN"] = "Your Apify API token"
apify = ApifyWrapper()
loader = apify.call_actor(
actor_id="apify/website-content-crawler",
run_input={"startUrls": [{"url": "https://python.langchain.com/en/latest/"}]},
dataset_mapping_function=lambda item: Document(
page_content=item["text"] or "", metadata={"source": item["url"]}
),
)
index = | VectorstoreIndexCreator() | langchain.indexes.VectorstoreIndexCreator |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet "docarray"')
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import DocArrayInMemorySearch
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
documents = TextLoader("../../modules/state_of_the_union.txt").load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
embeddings = OpenAIEmbeddings()
db = | DocArrayInMemorySearch.from_documents(docs, embeddings) | langchain_community.vectorstores.DocArrayInMemorySearch.from_documents |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet annoy')
from langchain_community.embeddings import HuggingFaceEmbeddings
from langchain_community.vectorstores import Annoy
embeddings_func = HuggingFaceEmbeddings()
texts = ["pizza is great", "I love salad", "my car", "a dog"]
vector_store = Annoy.from_texts(texts, embeddings_func)
vector_store_v2 = Annoy.from_texts(
texts, embeddings_func, metric="dot", n_trees=100, n_jobs=1
)
vector_store.similarity_search("food", k=3)
vector_store.similarity_search_with_score("food", k=3)
from langchain_community.document_loaders import TextLoader
from langchain_text_splitters import CharacterTextSplitter
loader = TextLoader("../../modules/state_of_the_union.txtn.txtn.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
docs[:5]
vector_store_from_docs = Annoy.from_documents(docs, embeddings_func)
query = "What did the president say about Ketanji Brown Jackson"
docs = vector_store_from_docs.similarity_search(query)
print(docs[0].page_content[:100])
embs = embeddings_func.embed_documents(texts)
data = list(zip(texts, embs))
vector_store_from_embeddings = Annoy.from_embeddings(data, embeddings_func)
vector_store_from_embeddings.similarity_search_with_score("food", k=3)
motorbike_emb = embeddings_func.embed_query("motorbike")
vector_store.similarity_search_by_vector(motorbike_emb, k=3)
vector_store.similarity_search_with_score_by_vector(motorbike_emb, k=3)
vector_store.index_to_docstore_id
some_docstore_id = 0 # texts[0]
vector_store.docstore._dict[vector_store.index_to_docstore_id[some_docstore_id]]
vector_store.similarity_search_with_score_by_index(some_docstore_id, k=3)
vector_store.save_local("my_annoy_index_and_docstore")
loaded_vector_store = Annoy.load_local(
"my_annoy_index_and_docstore", embeddings=embeddings_func
)
loaded_vector_store.similarity_search_with_score_by_index(some_docstore_id, k=3)
import uuid
from annoy import AnnoyIndex
from langchain.docstore.document import Document
from langchain.docstore.in_memory import InMemoryDocstore
metadatas = [{"x": "food"}, {"x": "food"}, {"x": "stuff"}, {"x": "animal"}]
embeddings = embeddings_func.embed_documents(texts)
f = len(embeddings[0])
metric = "angular"
index = AnnoyIndex(f, metric=metric)
for i, emb in enumerate(embeddings):
index.add_item(i, emb)
index.build(10)
documents = []
for i, text in enumerate(texts):
metadata = metadatas[i] if metadatas else {}
documents.append( | Document(page_content=text, metadata=metadata) | langchain.docstore.document.Document |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet opaqueprompts langchain')
import os
os.environ["OPAQUEPROMPTS_API_KEY"] = "<OPAQUEPROMPTS_API_KEY>"
os.environ["OPENAI_API_KEY"] = "<OPENAI_API_KEY>"
from langchain.callbacks.stdout import StdOutCallbackHandler
from langchain.chains import LLMChain
from langchain.globals import set_debug, set_verbose
from langchain.memory import ConversationBufferWindowMemory
from langchain.prompts import PromptTemplate
from langchain_community.llms import OpaquePrompts
from langchain_openai import OpenAI
set_debug(True)
set_verbose(True)
prompt_template = """
As an AI assistant, you will answer questions according to given context.
Sensitive personal information in the question is masked for privacy.
For instance, if the original text says "Giana is good," it will be changed
to "PERSON_998 is good."
Here's how to handle these changes:
* Consider these masked phrases just as placeholders, but still refer to
them in a relevant way when answering.
* It's possible that different masked terms might mean the same thing.
Stick with the given term and don't modify it.
* All masked terms follow the "TYPE_ID" pattern.
* Please don't invent new masked terms. For instance, if you see "PERSON_998,"
don't come up with "PERSON_997" or "PERSON_999" unless they're already in the question.
Conversation History: ```{history}```
Context : ```During our recent meeting on February 23, 2023, at 10:30 AM,
John Doe provided me with his personal details. His email is [email protected]
and his contact number is 650-456-7890. He lives in New York City, USA, and
belongs to the American nationality with Christian beliefs and a leaning towards
the Democratic party. He mentioned that he recently made a transaction using his
credit card 4111 1111 1111 1111 and transferred bitcoins to the wallet address
1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa. While discussing his European travels, he noted
down his IBAN as GB29 NWBK 6016 1331 9268 19. Additionally, he provided his website
as https://johndoeportfolio.com. John also discussed some of his US-specific details.
He said his bank account number is 1234567890123456 and his drivers license is Y12345678.
His ITIN is 987-65-4321, and he recently renewed his passport, the number for which is
123456789. He emphasized not to share his SSN, which is 123-45-6789. Furthermore, he
mentioned that he accesses his work files remotely through the IP 192.168.1.1 and has
a medical license number MED-123456. ```
Question: ```{question}```
"""
chain = LLMChain(
prompt=PromptTemplate.from_template(prompt_template),
llm=OpaquePrompts(base_llm=OpenAI()),
memory=ConversationBufferWindowMemory(k=2),
verbose=True,
)
print(
chain.run(
{
"question": """Write a message to remind John to do password reset for his website to stay secure."""
},
callbacks=[StdOutCallbackHandler()],
)
)
import langchain_community.utilities.opaqueprompts as op
from langchain_core.output_parsers import StrOutputParser
from langchain_core.runnables import RunnablePassthrough
prompt = (PromptTemplate.from_template(prompt_template),)
llm = OpenAI()
pg_chain = (
op.sanitize
| RunnablePassthrough.assign(
response=(lambda x: x["sanitized_input"]) | prompt | llm | StrOutputParser(),
)
| (lambda x: | op.desanitize(x["response"], x["secure_context"]) | langchain_community.utilities.opaqueprompts.desanitize |
from langchain_community.embeddings import VoyageEmbeddings
embeddings = VoyageEmbeddings(
voyage_api_key="[ Your Voyage API key ]", model="voyage-2"
)
documents = [
"Caching embeddings enables the storage or temporary caching of embeddings, eliminating the necessity to recompute them each time.",
"An LLMChain is a chain that composes basic LLM functionality. It consists of a PromptTemplate and a language model (either an LLM or chat model). It formats the prompt template using the input key values provided (and also memory key values, if available), passes the formatted string to LLM and returns the LLM output.",
"A Runnable represents a generic unit of work that can be invoked, batched, streamed, and/or transformed.",
]
documents_embds = embeddings.embed_documents(documents)
documents_embds[0][:5]
query = "What's an LLMChain?"
query_embd = embeddings.embed_query(query)
query_embd[:5]
from langchain.retrievers import KNNRetriever
retriever = | KNNRetriever.from_texts(documents, embeddings) | langchain.retrievers.KNNRetriever.from_texts |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-elasticsearch langchain-openai tiktoken langchain')
import getpass
import os
os.environ["OPENAI_API_KEY"] = getpass.getpass("OpenAI API Key:")
from langchain_elasticsearch import ElasticsearchStore
from langchain_openai import OpenAIEmbeddings
from langchain_community.document_loaders import TextLoader
from langchain_text_splitters import CharacterTextSplitter
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=500, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
embeddings = OpenAIEmbeddings()
db = ElasticsearchStore.from_documents(
docs,
embeddings,
es_url="http://localhost:9200",
index_name="test-basic",
)
db.client.indices.refresh(index="test-basic")
query = "What did the president say about Ketanji Brown Jackson"
results = db.similarity_search(query)
print(results)
for i, doc in enumerate(docs):
doc.metadata["date"] = f"{range(2010, 2020)[i % 10]}-01-01"
doc.metadata["rating"] = range(1, 6)[i % 5]
doc.metadata["author"] = ["John Doe", "Jane Doe"][i % 2]
db = ElasticsearchStore.from_documents(
docs, embeddings, es_url="http://localhost:9200", index_name="test-metadata"
)
query = "What did the president say about Ketanji Brown Jackson"
docs = db.similarity_search(query)
print(docs[0].metadata)
docs = db.similarity_search(
query, filter=[{"term": {"metadata.author.keyword": "John Doe"}}]
)
print(docs[0].metadata)
docs = db.similarity_search(
query,
filter=[{"match": {"metadata.author": {"query": "Jon", "fuzziness": "AUTO"}}}],
)
print(docs[0].metadata)
docs = db.similarity_search(
"Any mention about Fred?",
filter=[{"range": {"metadata.date": {"gte": "2010-01-01"}}}],
)
print(docs[0].metadata)
docs = db.similarity_search(
"Any mention about Fred?", filter=[{"range": {"metadata.rating": {"gte": 2}}}]
)
print(docs[0].metadata)
docs = db.similarity_search(
"Any mention about Fred?",
filter=[
{
"geo_distance": {
"distance": "200km",
"metadata.geo_location": {"lat": 40, "lon": -70},
}
}
],
)
print(docs[0].metadata)
db = ElasticsearchStore.from_documents(
docs,
embeddings,
es_url="http://localhost:9200",
index_name="test",
strategy= | ElasticsearchStore.ApproxRetrievalStrategy() | langchain_elasticsearch.ElasticsearchStore.ApproxRetrievalStrategy |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet networkx')
from langchain.indexes import GraphIndexCreator
from langchain_openai import OpenAI
index_creator = GraphIndexCreator(llm= | OpenAI(temperature=0) | langchain_openai.OpenAI |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-nvidia-ai-endpoints')
import getpass
import os
if not os.environ.get("NVIDIA_API_KEY", "").startswith("nvapi-"):
nvapi_key = getpass.getpass("Enter your NVIDIA API key: ")
assert nvapi_key.startswith("nvapi-"), f"{nvapi_key[:5]}... is not a valid key"
os.environ["NVIDIA_API_KEY"] = nvapi_key
from langchain_nvidia_ai_endpoints import ChatNVIDIA
llm = | ChatNVIDIA(model="mixtral_8x7b") | langchain_nvidia_ai_endpoints.ChatNVIDIA |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet nlpcloud')
from getpass import getpass
NLPCLOUD_API_KEY = getpass()
import os
os.environ["NLPCLOUD_API_KEY"] = NLPCLOUD_API_KEY
from langchain.chains import LLMChain
from langchain.prompts import PromptTemplate
from langchain_community.llms import NLPCloud
template = """Question: {question}
Answer: Let's think step by step."""
prompt = PromptTemplate.from_template(template)
llm = | NLPCloud() | langchain_community.llms.NLPCloud |
from langchain.agents import AgentExecutor, BaseMultiActionAgent, Tool
from langchain_community.utilities import SerpAPIWrapper
def random_word(query: str) -> str:
print("\nNow I'm doing this!")
return "foo"
search = SerpAPIWrapper()
tools = [
Tool(
name="Search",
func=search.run,
description="useful for when you need to answer questions about current events",
),
Tool(
name="RandomWord",
func=random_word,
description="call this to get a random word.",
),
]
from typing import Any, List, Tuple, Union
from langchain_core.agents import AgentAction, AgentFinish
class FakeAgent(BaseMultiActionAgent):
"""Fake Custom Agent."""
@property
def input_keys(self):
return ["input"]
def plan(
self, intermediate_steps: List[Tuple[AgentAction, str]], **kwargs: Any
) -> Union[List[AgentAction], AgentFinish]:
"""Given input, decided what to do.
Args:
intermediate_steps: Steps the LLM has taken to date,
along with observations
**kwargs: User inputs.
Returns:
Action specifying what tool to use.
"""
if len(intermediate_steps) == 0:
return [
| AgentAction(tool="Search", tool_input=kwargs["input"], log="") | langchain_core.agents.AgentAction |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet lxml')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet html2text')
from langchain_community.document_loaders import EverNoteLoader
loader = | EverNoteLoader("example_data/testing.enex") | langchain_community.document_loaders.EverNoteLoader |
from langchain.chains import HypotheticalDocumentEmbedder, LLMChain
from langchain.prompts import PromptTemplate
from langchain_openai import OpenAI, OpenAIEmbeddings
base_embeddings = OpenAIEmbeddings()
llm = | OpenAI() | langchain_openai.OpenAI |
import os
from langchain_community.utilities import OpenWeatherMapAPIWrapper
os.environ["OPENWEATHERMAP_API_KEY"] = ""
weather = OpenWeatherMapAPIWrapper()
weather_data = weather.run("London,GB")
print(weather_data)
import os
from langchain.agents import AgentType, initialize_agent, load_tools
from langchain_openai import OpenAI
os.environ["OPENAI_API_KEY"] = ""
os.environ["OPENWEATHERMAP_API_KEY"] = ""
llm = OpenAI(temperature=0)
tools = | load_tools(["openweathermap-api"], llm) | langchain.agents.load_tools |
get_ipython().system('pip install termcolor > /dev/null')
import logging
logging.basicConfig(level=logging.ERROR)
from datetime import datetime, timedelta
from typing import List
from langchain.docstore import InMemoryDocstore
from langchain.retrievers import TimeWeightedVectorStoreRetriever
from langchain_community.vectorstores import FAISS
from langchain_openai import ChatOpenAI, OpenAIEmbeddings
from termcolor import colored
USER_NAME = "Person A" # The name you want to use when interviewing the agent.
LLM = ChatOpenAI(max_tokens=1500) # Can be any LLM you want.
from langchain_experimental.generative_agents import (
GenerativeAgent,
GenerativeAgentMemory,
)
import math
import faiss
def relevance_score_fn(score: float) -> float:
"""Return a similarity score on a scale [0, 1]."""
return 1.0 - score / math.sqrt(2)
def create_new_memory_retriever():
"""Create a new vector store retriever unique to the agent."""
embeddings_model = OpenAIEmbeddings()
embedding_size = 1536
index = faiss.IndexFlatL2(embedding_size)
vectorstore = FAISS(
embeddings_model.embed_query,
index,
| InMemoryDocstore({}) | langchain.docstore.InMemoryDocstore |
REGION = "us-central1" # @param {type:"string"}
INSTANCE = "test-instance" # @param {type:"string"}
DB_USER = "sqlserver" # @param {type:"string"}
DB_PASS = "password" # @param {type:"string"}
DATABASE = "test" # @param {type:"string"}
TABLE_NAME = "test-default" # @param {type:"string"}
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-google-cloud-sql-mssql')
from google.colab import auth
auth.authenticate_user()
PROJECT_ID = "my-project-id" # @param {type:"string"}
get_ipython().system('gcloud config set project {PROJECT_ID}')
get_ipython().system('gcloud services enable sqladmin.googleapis.com')
from langchain_google_cloud_sql_mssql import MSSQLEngine
engine = MSSQLEngine.from_instance(
project_id=PROJECT_ID,
region=REGION,
instance=INSTANCE,
database=DATABASE,
user=DB_USER,
password=DB_PASS,
)
engine.init_document_table(TABLE_NAME, overwrite_existing=True)
from langchain_core.documents import Document
from langchain_google_cloud_sql_mssql import MSSQLDocumentSaver
test_docs = [
Document(
page_content="Apple Granny Smith 150 0.99 1",
metadata={"fruit_id": 1},
),
Document(
page_content="Banana Cavendish 200 0.59 0",
metadata={"fruit_id": 2},
),
Document(
page_content="Orange Navel 80 1.29 1",
metadata={"fruit_id": 3},
),
]
saver = MSSQLDocumentSaver(engine=engine, table_name=TABLE_NAME)
saver.add_documents(test_docs)
from langchain_google_cloud_sql_mssql import MSSQLLoader
loader = MSSQLLoader(engine=engine, table_name=TABLE_NAME)
docs = loader.lazy_load()
for doc in docs:
print("Loaded documents:", doc)
from langchain_google_cloud_sql_mssql import MSSQLLoader
loader = MSSQLLoader(
engine=engine,
query=f"select * from \"{TABLE_NAME}\" where JSON_VALUE(langchain_metadata, '$.fruit_id') = 1;",
)
onedoc = loader.load()
onedoc
from langchain_google_cloud_sql_mssql import MSSQLLoader
loader = MSSQLLoader(engine=engine, table_name=TABLE_NAME)
docs = loader.load()
print("Documents before delete:", docs)
saver.delete(onedoc)
print("Documents after delete:", loader.load())
import sqlalchemy
with engine.connect() as conn:
conn.execute(sqlalchemy.text(f'DROP TABLE IF EXISTS "{TABLE_NAME}"'))
conn.commit()
conn.execute(
sqlalchemy.text(
f"""
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[{TABLE_NAME}]') AND type in (N'U'))
BEGIN
CREATE TABLE [dbo].[{TABLE_NAME}](
fruit_id INT IDENTITY(1,1) PRIMARY KEY,
fruit_name VARCHAR(100) NOT NULL,
variety VARCHAR(50),
quantity_in_stock INT NOT NULL,
price_per_unit DECIMAL(6,2) NOT NULL,
organic BIT NOT NULL
)
END
"""
)
)
conn.execute(
sqlalchemy.text(
f"""
INSERT INTO "{TABLE_NAME}" (fruit_name, variety, quantity_in_stock, price_per_unit, organic)
VALUES
('Apple', 'Granny Smith', 150, 0.99, 1),
('Banana', 'Cavendish', 200, 0.59, 0),
('Orange', 'Navel', 80, 1.29, 1);
"""
)
)
conn.commit()
loader = MSSQLLoader(
engine=engine,
table_name=TABLE_NAME,
)
loader.load()
loader = MSSQLLoader(
engine=engine,
table_name=TABLE_NAME,
content_columns=[
"variety",
"quantity_in_stock",
"price_per_unit",
"organic",
],
metadata_columns=["fruit_id", "fruit_name"],
)
loader.load()
engine.init_document_table(
TABLE_NAME,
metadata_columns=[
sqlalchemy.Column(
"fruit_name",
sqlalchemy.UnicodeText,
primary_key=False,
nullable=True,
),
sqlalchemy.Column(
"organic",
sqlalchemy.Boolean,
primary_key=False,
nullable=True,
),
],
content_column="description",
metadata_json_column="other_metadata",
overwrite_existing=True,
)
test_docs = [
Document(
page_content="Granny Smith 150 0.99",
metadata={"fruit_id": 1, "fruit_name": "Apple", "organic": 1},
),
]
saver = MSSQLDocumentSaver(
engine=engine,
table_name=TABLE_NAME,
content_column="description",
metadata_json_column="other_metadata",
)
saver.add_documents(test_docs)
with engine.connect() as conn:
result = conn.execute(sqlalchemy.text(f'select * from "{TABLE_NAME}";'))
print(result.keys())
print(result.fetchall())
loader = | MSSQLLoader(engine=engine, table_name=TABLE_NAME) | langchain_google_cloud_sql_mssql.MSSQLLoader |
from langchain.chains import LLMCheckerChain
from langchain_openai import OpenAI
llm = OpenAI(temperature=0.7)
text = "What type of mammal lays the biggest eggs?"
checker_chain = | LLMCheckerChain.from_llm(llm, verbose=True) | langchain.chains.LLMCheckerChain.from_llm |
from langchain_community.llms import Ollama
llm = Ollama(model="llama2")
llm("The first man on the moon was ...")
from langchain.callbacks.manager import CallbackManager
from langchain.callbacks.streaming_stdout import StreamingStdOutCallbackHandler
llm = Ollama(
model="llama2", callback_manager=CallbackManager([StreamingStdOutCallbackHandler()])
)
llm("The first man on the moon was ...")
from langchain_community.llms import Ollama
llm = | Ollama(model="llama2:13b") | langchain_community.llms.Ollama |
from langchain.evaluation import load_evaluator
evaluator = load_evaluator("criteria", criteria="conciseness")
from langchain.evaluation import EvaluatorType
evaluator = load_evaluator(EvaluatorType.CRITERIA, criteria="conciseness")
eval_result = evaluator.evaluate_strings(
prediction="What's 2+2? That's an elementary question. The answer you're looking for is that two and two is four.",
input="What's 2+2?",
)
print(eval_result)
evaluator = load_evaluator("labeled_criteria", criteria="correctness")
eval_result = evaluator.evaluate_strings(
input="What is the capital of the US?",
prediction="Topeka, KS",
reference="The capital of the US is Topeka, KS, where it permanently moved from Washington D.C. on May 16, 2023",
)
print(f'With ground truth: {eval_result["score"]}')
from langchain.evaluation import Criteria
list(Criteria)
custom_criterion = {
"numeric": "Does the output contain numeric or mathematical information?"
}
eval_chain = load_evaluator(
EvaluatorType.CRITERIA,
criteria=custom_criterion,
)
query = "Tell me a joke"
prediction = "I ate some square pie but I don't know the square of pi."
eval_result = eval_chain.evaluate_strings(prediction=prediction, input=query)
print(eval_result)
custom_criteria = {
"numeric": "Does the output contain numeric information?",
"mathematical": "Does the output contain mathematical information?",
"grammatical": "Is the output grammatically correct?",
"logical": "Is the output logical?",
}
eval_chain = load_evaluator(
EvaluatorType.CRITERIA,
criteria=custom_criteria,
)
eval_result = eval_chain.evaluate_strings(prediction=prediction, input=query)
print("Multi-criteria evaluation")
print(eval_result)
from langchain.chains.constitutional_ai.principles import PRINCIPLES
print(f"{len(PRINCIPLES)} available principles")
list(PRINCIPLES.items())[:5]
evaluator = | load_evaluator(EvaluatorType.CRITERIA, criteria=PRINCIPLES["harmful1"]) | langchain.evaluation.load_evaluator |
from langchain_mongodb.chat_message_histories import MongoDBChatMessageHistory
chat_message_history = MongoDBChatMessageHistory(
session_id="test_session",
connection_string="mongodb://mongo_user:password123@mongo:27017",
database_name="my_db",
collection_name="chat_histories",
)
chat_message_history.add_user_message("Hello")
chat_message_history.add_ai_message("Hi")
chat_message_history.messages
from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
from langchain_core.runnables.history import RunnableWithMessageHistory
from langchain_openai import ChatOpenAI
import os
assert os.environ[
"OPENAI_API_KEY"
], "Set the OPENAI_API_KEY environment variable with your OpenAI API key."
prompt = ChatPromptTemplate.from_messages(
[
("system", "You are a helpful assistant."),
| MessagesPlaceholder(variable_name="history") | langchain_core.prompts.MessagesPlaceholder |
SOURCE = "test" # @param {type:"Query"|"CollectionGroup"|"DocumentReference"|"string"}
get_ipython().run_line_magic('pip', 'install -upgrade --quiet langchain-google-firestore')
PROJECT_ID = "my-project-id" # @param {type:"string"}
get_ipython().system('gcloud config set project {PROJECT_ID}')
from google.colab import auth
auth.authenticate_user()
get_ipython().system('gcloud services enable firestore.googleapis.com')
from langchain_core.documents.base import Document
from langchain_google_firestore import FirestoreSaver
saver = FirestoreSaver()
data = [Document(page_content="Hello, World!")]
saver.upsert_documents(data)
saver = FirestoreSaver("Collection")
saver.upsert_documents(data)
doc_ids = ["AnotherCollection/doc_id", "foo/bar"]
saver = FirestoreSaver()
saver.upsert_documents(documents=data, document_ids=doc_ids)
from langchain_google_firestore import FirestoreLoader
loader_collection = FirestoreLoader("Collection")
loader_subcollection = FirestoreLoader("Collection/doc/SubCollection")
data_collection = loader_collection.load()
data_subcollection = loader_subcollection.load()
from google.cloud import firestore
client = firestore.Client()
doc_ref = client.collection("foo").document("bar")
loader_document = | FirestoreLoader(doc_ref) | langchain_google_firestore.FirestoreLoader |
from langchain.agents import AgentExecutor, Tool, ZeroShotAgent
from langchain.chains import LLMChain
from langchain.memory import ConversationBufferMemory
from langchain_community.utilities import GoogleSearchAPIWrapper
from langchain_openai import OpenAI
search = GoogleSearchAPIWrapper()
tools = [
Tool(
name="Search",
func=search.run,
description="useful for when you need to answer questions about current events",
)
]
prefix = """Have a conversation with a human, answering the following questions as best you can. You have access to the following tools:"""
suffix = """Begin!"
{chat_history}
Question: {input}
{agent_scratchpad}"""
prompt = ZeroShotAgent.create_prompt(
tools,
prefix=prefix,
suffix=suffix,
input_variables=["input", "chat_history", "agent_scratchpad"],
)
memory = ConversationBufferMemory(memory_key="chat_history")
llm_chain = LLMChain(llm=OpenAI(temperature=0), prompt=prompt)
agent = | ZeroShotAgent(llm_chain=llm_chain, tools=tools, verbose=True) | langchain.agents.ZeroShotAgent |
from langchain.callbacks import get_openai_callback
from langchain_openai import ChatOpenAI
llm = ChatOpenAI(model_name="gpt-4")
with get_openai_callback() as cb:
result = llm.invoke("Tell me a joke")
print(cb)
with | get_openai_callback() | langchain.callbacks.get_openai_callback |
get_ipython().run_line_magic('', 'pip install --upgrade --quiet flashrank')
get_ipython().run_line_magic('', 'pip install --upgrade --quiet faiss')
get_ipython().run_line_magic('', 'pip install --upgrade --quiet faiss_cpu')
def pretty_print_docs(docs):
print(
f"\n{'-' * 100}\n".join(
[f"Document {i+1}:\n\n" + d.page_content for i, d in enumerate(docs)]
)
)
import getpass
import os
os.environ["OPENAI_API_KEY"] = getpass.getpass()
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import FAISS
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import RecursiveCharacterTextSplitter
documents = TextLoader(
"../../modules/state_of_the_union.txt",
).load()
text_splitter = RecursiveCharacterTextSplitter(chunk_size=500, chunk_overlap=100)
texts = text_splitter.split_documents(documents)
embedding = OpenAIEmbeddings(model="text-embedding-ada-002")
retriever = FAISS.from_documents(texts, embedding).as_retriever(search_kwargs={"k": 20})
query = "What did the president say about Ketanji Brown Jackson"
docs = retriever.get_relevant_documents(query)
pretty_print_docs(docs)
from langchain.retrievers import ContextualCompressionRetriever
from langchain.retrievers.document_compressors import FlashrankRerank
from langchain_openai import ChatOpenAI
llm = ChatOpenAI(temperature=0)
compressor = FlashrankRerank()
compression_retriever = ContextualCompressionRetriever(
base_compressor=compressor, base_retriever=retriever
)
compressed_docs = compression_retriever.get_relevant_documents(
"What did the president say about Ketanji Jackson Brown"
)
print([doc.metadata["id"] for doc in compressed_docs])
pretty_print_docs(compressed_docs)
from langchain.chains import RetrievalQA
chain = | RetrievalQA.from_chain_type(llm=llm, retriever=compression_retriever) | langchain.chains.RetrievalQA.from_chain_type |
import os
os.environ["SCENEX_API_KEY"] = "<YOUR_API_KEY>"
from langchain.agents import load_tools
tools = | load_tools(["sceneXplain"]) | langchain.agents.load_tools |
from langchain_core.pydantic_v1 import BaseModel, Field
class Joke(BaseModel):
setup: str = | Field(description="The setup of the joke") | langchain_core.pydantic_v1.Field |
from langchain_community.document_loaders import ObsidianLoader
loader = | ObsidianLoader("<path-to-obsidian>") | langchain_community.document_loaders.ObsidianLoader |
from langchain.callbacks.manager import CallbackManager
from langchain.callbacks.streaming_stdout import StreamingStdOutCallbackHandler
from langchain.prompts import PromptTemplate
from langchain_community.llms import TitanTakeoffPro
llm = | TitanTakeoffPro() | langchain_community.llms.TitanTakeoffPro |
get_ipython().system("python3 -m pip install --upgrade langchain 'deeplake[enterprise]' openai tiktoken")
import getpass
import os
from langchain.chains import RetrievalQA
from langchain_community.vectorstores import DeepLake
from langchain_openai import OpenAI, OpenAIEmbeddings
from langchain_text_splitters import (
CharacterTextSplitter,
RecursiveCharacterTextSplitter,
)
os.environ["OPENAI_API_KEY"] = getpass.getpass("OpenAI API Key:")
activeloop_token = getpass.getpass("Activeloop Token:")
os.environ["ACTIVELOOP_TOKEN"] = activeloop_token
os.environ["ACTIVELOOP_ORG"] = getpass.getpass("Activeloop Org:")
org_id = os.environ["ACTIVELOOP_ORG"]
embeddings = OpenAIEmbeddings()
dataset_path = "hub://" + org_id + "/data"
with open("messages.txt") as f:
state_of_the_union = f.read()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
pages = text_splitter.split_text(state_of_the_union)
text_splitter = | RecursiveCharacterTextSplitter(chunk_size=1000, chunk_overlap=100) | langchain_text_splitters.RecursiveCharacterTextSplitter |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-community')
import os
os.environ["YDC_API_KEY"] = ""
os.environ["OPENAI_API_KEY"] = ""
from langchain_community.tools.you import YouSearchTool
from langchain_community.utilities.you import YouSearchAPIWrapper
api_wrapper = YouSearchAPIWrapper(num_web_results=1)
tool = YouSearchTool(api_wrapper=api_wrapper)
tool
response = tool.invoke("What is the weather in NY")
print(len(response))
for item in response:
print(item)
get_ipython().system('pip install --upgrade --quiet langchain langchain-openai langchainhub langchain-community')
from langchain import hub
from langchain.agents import AgentExecutor, create_openai_functions_agent
from langchain_openai import ChatOpenAI
instructions = """You are an assistant."""
base_prompt = hub.pull("langchain-ai/openai-functions-template")
prompt = base_prompt.partial(instructions=instructions)
llm = ChatOpenAI(temperature=0)
you_tool = YouSearchTool(api_wrapper= | YouSearchAPIWrapper(num_web_results=1) | langchain_community.utilities.you.YouSearchAPIWrapper |
import requests
def download_drive_file(url: str, output_path: str = "chat.db") -> None:
file_id = url.split("/")[-2]
download_url = f"https://drive.google.com/uc?export=download&id={file_id}"
response = requests.get(download_url)
if response.status_code != 200:
print("Failed to download the file.")
return
with open(output_path, "wb") as file:
file.write(response.content)
print(f"File {output_path} downloaded.")
url = (
"https://drive.google.com/file/d/1NebNKqTA2NXApCmeH6mu0unJD2tANZzo/view?usp=sharing"
)
download_drive_file(url)
from langchain_community.chat_loaders.imessage import IMessageChatLoader
loader = IMessageChatLoader(
path="./chat.db",
)
from typing import List
from langchain_community.chat_loaders.base import ChatSession
from langchain_community.chat_loaders.utils import (
map_ai_messages,
merge_chat_runs,
)
raw_messages = loader.lazy_load()
merged_messages = merge_chat_runs(raw_messages)
chat_sessions: List[ChatSession] = list(
| map_ai_messages(merged_messages, sender="Tortoise") | langchain_community.chat_loaders.utils.map_ai_messages |
import getpass
import os
os.environ["TAVILY_API_KEY"] = getpass.getpass()
from langchain.retrievers.tavily_search_api import TavilySearchAPIRetriever
retriever = TavilySearchAPIRetriever(k=3)
retriever.invoke("what year was breath of the wild released?")
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate
from langchain_core.runnables import RunnablePassthrough
from langchain_openai import ChatOpenAI
prompt = ChatPromptTemplate.from_template(
"""Answer the question based only on the context provided.
Context: {context}
Question: {question}"""
)
chain = (
| RunnablePassthrough.assign(context=(lambda x: x["question"]) | retriever) | langchain_core.runnables.RunnablePassthrough.assign |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet boto3 langchain-openai tiktoken python-dotenv')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet "amazon-textract-caller>=0.2.0"')
from langchain_community.document_loaders import AmazonTextractPDFLoader
loader = | AmazonTextractPDFLoader("example_data/alejandro_rosalez_sample-small.jpeg") | langchain_community.document_loaders.AmazonTextractPDFLoader |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet opencv-python scikit-image')
import os
from langchain_openai import OpenAI
os.environ["OPENAI_API_KEY"] = "<your-key-here>"
from langchain.chains import LLMChain
from langchain.prompts import PromptTemplate
from langchain_community.utilities.dalle_image_generator import DallEAPIWrapper
from langchain_openai import OpenAI
llm = OpenAI(temperature=0.9)
prompt = PromptTemplate(
input_variables=["image_desc"],
template="Generate a detailed prompt to generate an image based on the following description: {image_desc}",
)
chain = LLMChain(llm=llm, prompt=prompt)
image_url = DallEAPIWrapper().run(chain.run("halloween night at a haunted museum"))
image_url
try:
import google.colab
IN_COLAB = True
except ImportError:
IN_COLAB = False
if IN_COLAB:
from google.colab.patches import cv2_imshow # for image display
from skimage import io
image = io.imread(image_url)
cv2_imshow(image)
else:
import cv2
from skimage import io
image = io.imread(image_url)
cv2.imshow("image", image)
cv2.waitKey(0) # wait for a keyboard input
cv2.destroyAllWindows()
from langchain.agents import initialize_agent, load_tools
tools = | load_tools(["dalle-image-generator"]) | langchain.agents.load_tools |
from langchain.tools import ShellTool
shell_tool = | ShellTool() | langchain.tools.ShellTool |
from langchain_community.vectorstores import Bagel
texts = ["hello bagel", "hello langchain", "I love salad", "my car", "a dog"]
cluster = Bagel.from_texts(cluster_name="testing", texts=texts)
cluster.similarity_search("bagel", k=3)
cluster.similarity_search_with_score("bagel", k=3)
cluster.delete_cluster()
from langchain_community.document_loaders import TextLoader
from langchain_text_splitters import CharacterTextSplitter
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)[:10]
cluster = | Bagel.from_documents(cluster_name="testing_with_docs", documents=docs) | langchain_community.vectorstores.Bagel.from_documents |
get_ipython().system(' pip install -U langchain openai chromadb langchain-experimental # (newest versions required for multi-modal)')
get_ipython().system(' pip install "unstructured[all-docs]==0.10.19" pillow pydantic lxml pillow matplotlib tiktoken open_clip_torch torch')
path = "/Users/rlm/Desktop/cpi/"
from langchain_community.document_loaders import PyPDFLoader
loader = PyPDFLoader(path + "cpi.pdf")
pdf_pages = loader.load()
from langchain_text_splitters import RecursiveCharacterTextSplitter
text_splitter = RecursiveCharacterTextSplitter(chunk_size=500, chunk_overlap=0)
all_splits_pypdf = text_splitter.split_documents(pdf_pages)
all_splits_pypdf_texts = [d.page_content for d in all_splits_pypdf]
from unstructured.partition.pdf import partition_pdf
raw_pdf_elements = partition_pdf(
filename=path + "cpi.pdf",
extract_images_in_pdf=True,
infer_table_structure=True,
chunking_strategy="by_title",
max_characters=4000,
new_after_n_chars=3800,
combine_text_under_n_chars=2000,
image_output_dir_path=path,
)
tables = []
texts = []
for element in raw_pdf_elements:
if "unstructured.documents.elements.Table" in str(type(element)):
tables.append(str(element))
elif "unstructured.documents.elements.CompositeElement" in str(type(element)):
texts.append(str(element))
from langchain_community.vectorstores import Chroma
from langchain_openai import OpenAIEmbeddings
baseline = Chroma.from_texts(
texts=all_splits_pypdf_texts,
collection_name="baseline",
embedding=OpenAIEmbeddings(),
)
retriever_baseline = baseline.as_retriever()
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate
from langchain_openai import ChatOpenAI
prompt_text = """You are an assistant tasked with summarizing tables and text for retrieval. \
These summaries will be embedded and used to retrieve the raw text or table elements. \
Give a concise summary of the table or text that is well optimized for retrieval. Table or text: {element} """
prompt = ChatPromptTemplate.from_template(prompt_text)
model = ChatOpenAI(temperature=0, model="gpt-4")
summarize_chain = {"element": lambda x: x} | prompt | model | StrOutputParser()
text_summaries = summarize_chain.batch(texts, {"max_concurrency": 5})
table_summaries = summarize_chain.batch(tables, {"max_concurrency": 5})
import base64
import io
import os
from io import BytesIO
from langchain_core.messages import HumanMessage
from PIL import Image
def encode_image(image_path):
"""Getting the base64 string"""
with open(image_path, "rb") as image_file:
return base64.b64encode(image_file.read()).decode("utf-8")
def image_summarize(img_base64, prompt):
"""Image summary"""
chat = ChatOpenAI(model="gpt-4-vision-preview", max_tokens=1024)
msg = chat.invoke(
[
HumanMessage(
content=[
{"type": "text", "text": prompt},
{
"type": "image_url",
"image_url": {"url": f"data:image/jpeg;base64,{img_base64}"},
},
]
)
]
)
return msg.content
img_base64_list = []
image_summaries = []
prompt = """You are an assistant tasked with summarizing images for retrieval. \
These summaries will be embedded and used to retrieve the raw image. \
Give a concise summary of the image that is well optimized for retrieval."""
for img_file in sorted(os.listdir(path)):
if img_file.endswith(".jpg"):
img_path = os.path.join(path, img_file)
base64_image = encode_image(img_path)
img_base64_list.append(base64_image)
image_summaries.append(image_summarize(base64_image, prompt))
import uuid
from base64 import b64decode
from langchain.retrievers.multi_vector import MultiVectorRetriever
from langchain.storage import InMemoryStore
from langchain_core.documents import Document
def create_multi_vector_retriever(
vectorstore, text_summaries, texts, table_summaries, tables, image_summaries, images
):
store = | InMemoryStore() | langchain.storage.InMemoryStore |
api_key = ""
from langchain_community.document_loaders import ToMarkdownLoader
loader = | ToMarkdownLoader(
url="https://python.langchain.com/docs/get_started/introduction", api_key=api_key
) | langchain_community.document_loaders.ToMarkdownLoader |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet predictionguard langchain')
import os
from langchain.chains import LLMChain
from langchain.prompts import PromptTemplate
from langchain_community.llms import PredictionGuard
os.environ["OPENAI_API_KEY"] = "<your OpenAI api key>"
os.environ["PREDICTIONGUARD_TOKEN"] = "<your Prediction Guard access token>"
pgllm = PredictionGuard(model="OpenAI-text-davinci-003")
pgllm("Tell me a joke")
template = """Respond to the following query based on the context.
Context: EVERY comment, DM + email suggestion has led us to this EXCITING announcement! 🎉 We have officially added TWO new candle subscription box options! 📦
Exclusive Candle Box - $80
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Query: {query}
Result: """
prompt = PromptTemplate.from_template(template)
pgllm(prompt.format(query="What kind of post is this?"))
pgllm = PredictionGuard(
model="OpenAI-text-davinci-003",
output={
"type": "categorical",
"categories": ["product announcement", "apology", "relational"],
},
)
pgllm(prompt.format(query="What kind of post is this?"))
pgllm = PredictionGuard(model="OpenAI-text-davinci-003")
template = """Question: {question}
Answer: Let's think step by step."""
prompt = PromptTemplate.from_template(template)
llm_chain = LLMChain(prompt=prompt, llm=pgllm, verbose=True)
question = "What NFL team won the Super Bowl in the year Justin Beiber was born?"
llm_chain.predict(question=question)
template = """Write a {adjective} poem about {subject}."""
prompt = PromptTemplate.from_template(template)
llm_chain = | LLMChain(prompt=prompt, llm=pgllm, verbose=True) | langchain.chains.LLMChain |
get_ipython().run_line_magic('pip', 'install -qU langchain-community langchain-openai')
from langchain_community.tools import MoveFileTool
from langchain_core.messages import HumanMessage
from langchain_core.utils.function_calling import convert_to_openai_function
from langchain_openai import ChatOpenAI
model = ChatOpenAI(model="gpt-3.5-turbo")
tools = [MoveFileTool()]
functions = [ | convert_to_openai_function(t) | langchain_core.utils.function_calling.convert_to_openai_function |
from typing import List
from langchain.output_parsers import PydanticOutputParser
from langchain.prompts import PromptTemplate
from langchain_core.pydantic_v1 import BaseModel, Field, validator
from langchain_openai import ChatOpenAI
model = ChatOpenAI(temperature=0)
class Joke(BaseModel):
setup: str = Field(description="question to set up a joke")
punchline: str = Field(description="answer to resolve the joke")
@ | validator("setup") | langchain_core.pydantic_v1.validator |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet cos-python-sdk-v5')
from langchain_community.document_loaders import TencentCOSDirectoryLoader
from qcloud_cos import CosConfig
conf = CosConfig(
Region="your cos region",
SecretId="your cos secret_id",
SecretKey="your cos secret_key",
)
loader = | TencentCOSDirectoryLoader(conf=conf, bucket="you_cos_bucket") | langchain_community.document_loaders.TencentCOSDirectoryLoader |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet clickhouse-connect')
import getpass
import os
os.environ["OPENAI_API_KEY"] = getpass.getpass("OpenAI API Key:")
os.environ["OPENAI_API_BASE"] = getpass.getpass("OpenAI Base:")
os.environ["MYSCALE_HOST"] = getpass.getpass("MyScale Host:")
os.environ["MYSCALE_PORT"] = getpass.getpass("MyScale Port:")
os.environ["MYSCALE_USERNAME"] = getpass.getpass("MyScale Username:")
os.environ["MYSCALE_PASSWORD"] = getpass.getpass("MyScale Password:")
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import MyScale
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
from langchain_community.document_loaders import TextLoader
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
embeddings = OpenAIEmbeddings()
for d in docs:
d.metadata = {"some": "metadata"}
docsearch = MyScale.from_documents(docs, embeddings)
query = "What did the president say about Ketanji Brown Jackson"
docs = docsearch.similarity_search(query)
print(docs[0].page_content)
print(str(docsearch))
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import MyScale
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
embeddings = OpenAIEmbeddings()
for i, d in enumerate(docs):
d.metadata = {"doc_id": i}
docsearch = | MyScale.from_documents(docs, embeddings) | langchain_community.vectorstores.MyScale.from_documents |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet playwright > /dev/null')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet lxml')
from langchain_community.agent_toolkits import PlayWrightBrowserToolkit
from langchain_community.tools.playwright.utils import (
create_async_playwright_browser, # A synchronous browser is available, though it isn't compatible with jupyter.\n", },
)
import nest_asyncio
nest_asyncio.apply()
async_browser = create_async_playwright_browser()
toolkit = | PlayWrightBrowserToolkit.from_browser(async_browser=async_browser) | langchain_community.agent_toolkits.PlayWrightBrowserToolkit.from_browser |
from langchain.vectorstores import NeuralDBVectorStore
vectorstore = | NeuralDBVectorStore.from_scratch(thirdai_key="your-thirdai-key") | langchain.vectorstores.NeuralDBVectorStore.from_scratch |
get_ipython().system(' pip install "openai>=1" "langchain>=0.0.331rc2" matplotlib pillow')
import base64
import io
import os
import numpy as np
from IPython.display import HTML, display
from PIL import Image
def encode_image(image_path):
"""Getting the base64 string"""
with open(image_path, "rb") as image_file:
return base64.b64encode(image_file.read()).decode("utf-8")
def plt_img_base64(img_base64):
"""Display the base64 image"""
image_html = f'<img src="data:image/jpeg;base64,{img_base64}" />'
display(HTML(image_html))
path = "/Users/rlm/Desktop/Multimodal_Eval/qa/llm_strategies.jpeg"
img_base64 = encode_image(path)
plt_img_base64(img_base64)
from langchain_core.messages import HumanMessage, SystemMessage
from langchain_openai import ChatOpenAI
chat = | ChatOpenAI(model="gpt-4-vision-preview", max_tokens=1024) | langchain_openai.ChatOpenAI |
import asyncio
import os
import nest_asyncio
import pandas as pd
from langchain.docstore.document import Document
from langchain_community.agent_toolkits.pandas.base import create_pandas_dataframe_agent
from langchain_experimental.autonomous_agents import AutoGPT
from langchain_openai import ChatOpenAI
nest_asyncio.apply()
llm = ChatOpenAI(model_name="gpt-4", temperature=1.0)
import os
from contextlib import contextmanager
from typing import Optional
from langchain.agents import tool
from langchain_community.tools.file_management.read import ReadFileTool
from langchain_community.tools.file_management.write import WriteFileTool
ROOT_DIR = "./data/"
@contextmanager
def pushd(new_dir):
"""Context manager for changing the current working directory."""
prev_dir = os.getcwd()
os.chdir(new_dir)
try:
yield
finally:
os.chdir(prev_dir)
@tool
def process_csv(
csv_file_path: str, instructions: str, output_path: Optional[str] = None
) -> str:
"""Process a CSV by with pandas in a limited REPL.\
Only use this after writing data to disk as a csv file.\
Any figures must be saved to disk to be viewed by the human.\
Instructions should be written in natural language, not code. Assume the dataframe is already loaded."""
with pushd(ROOT_DIR):
try:
df = pd.read_csv(csv_file_path)
except Exception as e:
return f"Error: {e}"
agent = create_pandas_dataframe_agent(llm, df, max_iterations=30, verbose=True)
if output_path is not None:
instructions += f" Save output to disk at {output_path}"
try:
result = agent.run(instructions)
return result
except Exception as e:
return f"Error: {e}"
async def async_load_playwright(url: str) -> str:
"""Load the specified URLs using Playwright and parse using BeautifulSoup."""
from bs4 import BeautifulSoup
from playwright.async_api import async_playwright
results = ""
async with async_playwright() as p:
browser = await p.chromium.launch(headless=True)
try:
page = await browser.new_page()
await page.goto(url)
page_source = await page.content()
soup = BeautifulSoup(page_source, "html.parser")
for script in soup(["script", "style"]):
script.extract()
text = soup.get_text()
lines = (line.strip() for line in text.splitlines())
chunks = (phrase.strip() for line in lines for phrase in line.split(" "))
results = "\n".join(chunk for chunk in chunks if chunk)
except Exception as e:
results = f"Error: {e}"
await browser.close()
return results
def run_async(coro):
event_loop = asyncio.get_event_loop()
return event_loop.run_until_complete(coro)
@tool
def browse_web_page(url: str) -> str:
"""Verbose way to scrape a whole webpage. Likely to cause issues parsing."""
return run_async(async_load_playwright(url))
from langchain.chains.qa_with_sources.loading import (
BaseCombineDocumentsChain,
load_qa_with_sources_chain,
)
from langchain.tools import BaseTool, DuckDuckGoSearchRun
from langchain_text_splitters import RecursiveCharacterTextSplitter
from pydantic import Field
def _get_text_splitter():
return RecursiveCharacterTextSplitter(
chunk_size=500,
chunk_overlap=20,
length_function=len,
)
class WebpageQATool(BaseTool):
name = "query_webpage"
description = (
"Browse a webpage and retrieve the information relevant to the question."
)
text_splitter: RecursiveCharacterTextSplitter = Field(
default_factory=_get_text_splitter
)
qa_chain: BaseCombineDocumentsChain
def _run(self, url: str, question: str) -> str:
"""Useful for browsing websites and scraping the text information."""
result = browse_web_page.run(url)
docs = [Document(page_content=result, metadata={"source": url})]
web_docs = self.text_splitter.split_documents(docs)
results = []
for i in range(0, len(web_docs), 4):
input_docs = web_docs[i : i + 4]
window_result = self.qa_chain(
{"input_documents": input_docs, "question": question},
return_only_outputs=True,
)
results.append(f"Response from window {i} - {window_result}")
results_docs = [
Document(page_content="\n".join(results), metadata={"source": url})
]
return self.qa_chain(
{"input_documents": results_docs, "question": question},
return_only_outputs=True,
)
async def _arun(self, url: str, question: str) -> str:
raise NotImplementedError
query_website_tool = WebpageQATool(qa_chain=load_qa_with_sources_chain(llm))
import faiss
from langchain.docstore import InMemoryDocstore
from langchain_community.vectorstores import FAISS
from langchain_openai import OpenAIEmbeddings
embeddings_model = OpenAIEmbeddings()
embedding_size = 1536
index = faiss.IndexFlatL2(embedding_size)
vectorstore = FAISS(embeddings_model.embed_query, index, InMemoryDocstore({}), {})
web_search = DuckDuckGoSearchRun()
tools = [
web_search,
| WriteFileTool(root_dir="./data") | langchain_community.tools.file_management.write.WriteFileTool |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet weaviate-client')
import getpass
import os
os.environ["OPENAI_API_KEY"] = getpass.getpass("OpenAI API Key:")
WEAVIATE_URL = getpass.getpass("WEAVIATE_URL:")
os.environ["WEAVIATE_API_KEY"] = getpass.getpass("WEAVIATE_API_KEY:")
WEAVIATE_API_KEY = os.environ["WEAVIATE_API_KEY"]
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import Weaviate
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
from langchain_community.document_loaders import TextLoader
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
embeddings = OpenAIEmbeddings()
db = | Weaviate.from_documents(docs, embeddings, weaviate_url=WEAVIATE_URL, by_text=False) | langchain_community.vectorstores.Weaviate.from_documents |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet marqo')
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import Marqo
from langchain_text_splitters import CharacterTextSplitter
from langchain_community.document_loaders import TextLoader
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
import marqo
marqo_url = "http://localhost:8882" # if using marqo cloud replace with your endpoint (console.marqo.ai)
marqo_api_key = "" # if using marqo cloud replace with your api key (console.marqo.ai)
client = marqo.Client(url=marqo_url, api_key=marqo_api_key)
index_name = "langchain-demo"
docsearch = Marqo.from_documents(docs, index_name=index_name)
query = "What did the president say about Ketanji Brown Jackson"
result_docs = docsearch.similarity_search(query)
print(result_docs[0].page_content)
result_docs = docsearch.similarity_search_with_score(query)
print(result_docs[0][0].page_content, result_docs[0][1], sep="\n")
index_name = "langchain-multimodal-demo"
try:
client.delete_index(index_name)
except Exception:
print(f"Creating {index_name}")
settings = {"treat_urls_and_pointers_as_images": True, "model": "ViT-L/14"}
client.create_index(index_name, **settings)
client.index(index_name).add_documents(
[
{
"caption": "Bus",
"image": "https://raw.githubusercontent.com/marqo-ai/marqo/mainline/examples/ImageSearchGuide/data/image4.jpg",
},
{
"caption": "Plane",
"image": "https://raw.githubusercontent.com/marqo-ai/marqo/mainline/examples/ImageSearchGuide/data/image2.jpg",
},
],
)
def get_content(res):
"""Helper to format Marqo's documents into text to be used as page_content"""
return f"{res['caption']}: {res['image']}"
docsearch = Marqo(client, index_name, page_content_builder=get_content)
query = "vehicles that fly"
doc_results = docsearch.similarity_search(query)
for doc in doc_results:
print(doc.page_content)
index_name = "langchain-byo-index-demo"
try:
client.delete_index(index_name)
except Exception:
print(f"Creating {index_name}")
client.create_index(index_name)
client.index(index_name).add_documents(
[
{
"Title": "Smartphone",
"Description": "A smartphone is a portable computer device that combines mobile telephone "
"functions and computing functions into one unit.",
},
{
"Title": "Telephone",
"Description": "A telephone is a telecommunications device that permits two or more users to"
"conduct a conversation when they are too far apart to be easily heard directly.",
},
],
)
def get_content(res):
"""Helper to format Marqo's documents into text to be used as page_content"""
if "text" in res:
return res["text"]
return res["Description"]
docsearch = | Marqo(client, index_name, page_content_builder=get_content) | langchain_community.vectorstores.Marqo |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet duckduckgo-search')
from langchain.tools import DuckDuckGoSearchRun
search = DuckDuckGoSearchRun()
search.run("Obama's first name?")
from langchain.tools import DuckDuckGoSearchResults
search = DuckDuckGoSearchResults()
search.run("Obama")
search = | DuckDuckGoSearchResults(backend="news") | langchain.tools.DuckDuckGoSearchResults |
from langchain.output_parsers import ResponseSchema, StructuredOutputParser
from langchain.prompts import PromptTemplate
from langchain_openai import ChatOpenAI
response_schemas = [
| ResponseSchema(name="answer", description="answer to the user's question") | langchain.output_parsers.ResponseSchema |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet lark chromadb')
from langchain_community.vectorstores import Chroma
from langchain_core.documents import Document
from langchain_openai import OpenAIEmbeddings
docs = [
Document(
page_content="A bunch of scientists bring back dinosaurs and mayhem breaks loose",
metadata={"year": 1993, "rating": 7.7, "genre": "science fiction"},
),
Document(
page_content="Leo DiCaprio gets lost in a dream within a dream within a dream within a ...",
metadata={"year": 2010, "director": "Christopher Nolan", "rating": 8.2},
),
Document(
page_content="A psychologist / detective gets lost in a series of dreams within dreams within dreams and Inception reused the idea",
metadata={"year": 2006, "director": "Satoshi Kon", "rating": 8.6},
),
Document(
page_content="A bunch of normal-sized women are supremely wholesome and some men pine after them",
metadata={"year": 2019, "director": "Greta Gerwig", "rating": 8.3},
),
Document(
page_content="Toys come alive and have a blast doing so",
metadata={"year": 1995, "genre": "animated"},
),
Document(
page_content="Three men walk into the Zone, three men walk out of the Zone",
metadata={
"year": 1979,
"director": "Andrei Tarkovsky",
"genre": "thriller",
"rating": 9.9,
},
),
]
vectorstore = Chroma.from_documents(docs, OpenAIEmbeddings())
from langchain.chains.query_constructor.base import AttributeInfo
from langchain.retrievers.self_query.base import SelfQueryRetriever
from langchain_openai import ChatOpenAI
metadata_field_info = [
AttributeInfo(
name="genre",
description="The genre of the movie. One of ['science fiction', 'comedy', 'drama', 'thriller', 'romance', 'action', 'animated']",
type="string",
),
AttributeInfo(
name="year",
description="The year the movie was released",
type="integer",
),
AttributeInfo(
name="director",
description="The name of the movie director",
type="string",
),
AttributeInfo(
name="rating", description="A 1-10 rating for the movie", type="float"
),
]
document_content_description = "Brief summary of a movie"
llm = ChatOpenAI(temperature=0)
retriever = SelfQueryRetriever.from_llm(
llm,
vectorstore,
document_content_description,
metadata_field_info,
)
retriever.invoke("I want to watch a movie rated higher than 8.5")
retriever.invoke("Has Greta Gerwig directed any movies about women")
retriever.invoke("What's a highly rated (above 8.5) science fiction film?")
retriever.invoke(
"What's a movie after 1990 but before 2005 that's all about toys, and preferably is animated"
)
retriever = SelfQueryRetriever.from_llm(
llm,
vectorstore,
document_content_description,
metadata_field_info,
enable_limit=True,
)
retriever.invoke("What are two movies about dinosaurs")
from langchain.chains.query_constructor.base import (
StructuredQueryOutputParser,
get_query_constructor_prompt,
)
prompt = get_query_constructor_prompt(
document_content_description,
metadata_field_info,
)
output_parser = | StructuredQueryOutputParser.from_components() | langchain.chains.query_constructor.base.StructuredQueryOutputParser.from_components |
get_ipython().run_line_magic('pip', "install --upgrade --quiet faiss-gpu # For CUDA 7.5+ Supported GPU's.")
get_ipython().run_line_magic('pip', 'install --upgrade --quiet faiss-cpu # For CPU Installation')
import getpass
import os
os.environ["OPENAI_API_KEY"] = getpass.getpass("OpenAI API Key:")
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import FAISS
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
loader = TextLoader("../../../extras/modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
embeddings = OpenAIEmbeddings()
db = await FAISS.afrom_documents(docs, embeddings)
query = "What did the president say about Ketanji Brown Jackson"
docs = await db.asimilarity_search(query)
print(docs[0].page_content)
docs_and_scores = await db.asimilarity_search_with_score(query)
docs_and_scores[0]
embedding_vector = await embeddings.aembed_query(query)
docs_and_scores = await db.asimilarity_search_by_vector(embedding_vector)
db.save_local("faiss_index")
new_db = | FAISS.load_local("faiss_index", embeddings, asynchronous=True) | langchain_community.vectorstores.FAISS.load_local |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet promptlayer --upgrade')
import promptlayer # Don't forget this 🍰
from langchain.callbacks import PromptLayerCallbackHandler
from langchain.schema import (
HumanMessage,
)
from langchain_openai import ChatOpenAI
chat_llm = ChatOpenAI(
temperature=0,
callbacks=[PromptLayerCallbackHandler(pl_tags=["chatopenai"])],
)
llm_results = chat_llm(
[
HumanMessage(content="What comes after 1,2,3 ?"),
| HumanMessage(content="Tell me another joke?") | langchain.schema.HumanMessage |
from langchain_community.document_loaders import ConcurrentLoader
loader = | ConcurrentLoader.from_filesystem("example_data/", glob="**/*.txt") | langchain_community.document_loaders.ConcurrentLoader.from_filesystem |
from langchain import hub
from langchain.agents import AgentExecutor, tool
from langchain.agents.output_parsers import XMLAgentOutputParser
from langchain_community.chat_models import ChatAnthropic
model = ChatAnthropic(model="claude-2")
@tool
def search(query: str) -> str:
"""Search things about current events."""
return "32 degrees"
tool_list = [search]
prompt = hub.pull("hwchase17/xml-agent-convo")
def convert_intermediate_steps(intermediate_steps):
log = ""
for action, observation in intermediate_steps:
log += (
f"<tool>{action.tool}</tool><tool_input>{action.tool_input}"
f"</tool_input><observation>{observation}</observation>"
)
return log
def convert_tools(tools):
return "\n".join([f"{tool.name}: {tool.description}" for tool in tools])
agent = (
{
"input": lambda x: x["input"],
"agent_scratchpad": lambda x: convert_intermediate_steps(
x["intermediate_steps"]
),
}
| prompt.partial(tools=convert_tools(tool_list))
| model.bind(stop=["</tool_input>", "</final_answer>"])
| XMLAgentOutputParser()
)
agent_executor = | AgentExecutor(agent=agent, tools=tool_list, verbose=True) | langchain.agents.AgentExecutor |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-community')
import os
os.environ["YDC_API_KEY"] = ""
os.environ["OPENAI_API_KEY"] = ""
from langchain_community.tools.you import YouSearchTool
from langchain_community.utilities.you import YouSearchAPIWrapper
api_wrapper = YouSearchAPIWrapper(num_web_results=1)
tool = | YouSearchTool(api_wrapper=api_wrapper) | langchain_community.tools.you.YouSearchTool |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet praw')
client_id = ""
client_secret = ""
user_agent = ""
from langchain_community.tools.reddit_search.tool import RedditSearchRun
from langchain_community.utilities.reddit_search import RedditSearchAPIWrapper
search = RedditSearchRun(
api_wrapper=RedditSearchAPIWrapper(
reddit_client_id=client_id,
reddit_client_secret=client_secret,
reddit_user_agent=user_agent,
)
)
from langchain_community.tools.reddit_search.tool import RedditSearchSchema
search_params = RedditSearchSchema(
query="beginner", sort="new", time_filter="week", subreddit="python", limit="2"
)
result = search.run(tool_input=search_params.dict())
print(result)
from langchain.agents import AgentExecutor, StructuredChatAgent, Tool
from langchain.chains import LLMChain
from langchain.memory import ConversationBufferMemory, ReadOnlySharedMemory
from langchain.prompts import PromptTemplate
from langchain_community.tools.reddit_search.tool import RedditSearchRun
from langchain_community.utilities.reddit_search import RedditSearchAPIWrapper
from langchain_openai import ChatOpenAI
client_id = ""
client_secret = ""
user_agent = ""
openai_api_key = ""
template = """This is a conversation between a human and a bot:
{chat_history}
Write a summary of the conversation for {input}:
"""
prompt = PromptTemplate(input_variables=["input", "chat_history"], template=template)
memory = ConversationBufferMemory(memory_key="chat_history")
prefix = """Have a conversation with a human, answering the following questions as best you can. You have access to the following tools:"""
suffix = """Begin!"
{chat_history}
Question: {input}
{agent_scratchpad}"""
tools = [
RedditSearchRun(
api_wrapper=RedditSearchAPIWrapper(
reddit_client_id=client_id,
reddit_client_secret=client_secret,
reddit_user_agent=user_agent,
)
)
]
prompt = StructuredChatAgent.create_prompt(
prefix=prefix,
tools=tools,
suffix=suffix,
input_variables=["input", "chat_history", "agent_scratchpad"],
)
llm = ChatOpenAI(temperature=0, openai_api_key=openai_api_key)
llm_chain = LLMChain(llm=llm, prompt=prompt)
agent = | StructuredChatAgent(llm_chain=llm_chain, verbose=True, tools=tools) | langchain.agents.StructuredChatAgent |
get_ipython().run_cell_magic('capture', '', '%pip install --upgrade --quiet python-arango # The ArangoDB Python Driver\n%pip install --upgrade --quiet adb-cloud-connector # The ArangoDB Cloud Instance provisioner\n%pip install --upgrade --quiet langchain-openai\n%pip install --upgrade --quiet langchain\n')
import json
from adb_cloud_connector import get_temp_credentials
from arango import ArangoClient
con = get_temp_credentials()
db = ArangoClient(hosts=con["url"]).db(
con["dbName"], con["username"], con["password"], verify=True
)
print(json.dumps(con, indent=2))
from langchain_community.graphs import ArangoGraph
graph = | ArangoGraph(db) | langchain_community.graphs.ArangoGraph |
import os
os.environ["EXA_API_KEY"] = "..."
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-exa')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain langchain-openai')
from langchain_core.prompts import PromptTemplate
from langchain_core.runnables import RunnableParallel, RunnablePassthrough
from langchain_exa import ExaSearchRetriever, TextContentsOptions
from langchain_openai import ChatOpenAI
retriever = ExaSearchRetriever(
k=5, text_contents_options=TextContentsOptions(max_length=200)
)
prompt = | PromptTemplate.from_template(
"""Answer the following query based on the following context:
query: {query}
<context>
{context}
</context"""
) | langchain_core.prompts.PromptTemplate.from_template |
from langchain.retrievers.multi_vector import MultiVectorRetriever
from langchain.storage import InMemoryByteStore
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import Chroma
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import RecursiveCharacterTextSplitter
loaders = [
TextLoader("../../paul_graham_essay.txt"),
TextLoader("../../state_of_the_union.txt"),
]
docs = []
for loader in loaders:
docs.extend(loader.load())
text_splitter = RecursiveCharacterTextSplitter(chunk_size=10000)
docs = text_splitter.split_documents(docs)
vectorstore = Chroma(
collection_name="full_documents", embedding_function=OpenAIEmbeddings()
)
store = InMemoryByteStore()
id_key = "doc_id"
retriever = MultiVectorRetriever(
vectorstore=vectorstore,
byte_store=store,
id_key=id_key,
)
import uuid
doc_ids = [str(uuid.uuid4()) for _ in docs]
child_text_splitter = RecursiveCharacterTextSplitter(chunk_size=400)
sub_docs = []
for i, doc in enumerate(docs):
_id = doc_ids[i]
_sub_docs = child_text_splitter.split_documents([doc])
for _doc in _sub_docs:
_doc.metadata[id_key] = _id
sub_docs.extend(_sub_docs)
retriever.vectorstore.add_documents(sub_docs)
retriever.docstore.mset(list(zip(doc_ids, docs)))
retriever.vectorstore.similarity_search("justice breyer")[0]
len(retriever.get_relevant_documents("justice breyer")[0].page_content)
from langchain.retrievers.multi_vector import SearchType
retriever.search_type = SearchType.mmr
len(retriever.get_relevant_documents("justice breyer")[0].page_content)
import uuid
from langchain_core.documents import Document
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate
from langchain_openai import ChatOpenAI
chain = (
{"doc": lambda x: x.page_content}
| ChatPromptTemplate.from_template("Summarize the following document:\n\n{doc}")
| ChatOpenAI(max_retries=0)
| StrOutputParser()
)
summaries = chain.batch(docs, {"max_concurrency": 5})
vectorstore = Chroma(collection_name="summaries", embedding_function=OpenAIEmbeddings())
store = InMemoryByteStore()
id_key = "doc_id"
retriever = MultiVectorRetriever(
vectorstore=vectorstore,
byte_store=store,
id_key=id_key,
)
doc_ids = [str(uuid.uuid4()) for _ in docs]
summary_docs = [
Document(page_content=s, metadata={id_key: doc_ids[i]})
for i, s in enumerate(summaries)
]
retriever.vectorstore.add_documents(summary_docs)
retriever.docstore.mset(list(zip(doc_ids, docs)))
sub_docs = vectorstore.similarity_search("justice breyer")
sub_docs[0]
retrieved_docs = retriever.get_relevant_documents("justice breyer")
len(retrieved_docs[0].page_content)
functions = [
{
"name": "hypothetical_questions",
"description": "Generate hypothetical questions",
"parameters": {
"type": "object",
"properties": {
"questions": {
"type": "array",
"items": {"type": "string"},
},
},
"required": ["questions"],
},
}
]
from langchain.output_parsers.openai_functions import JsonKeyOutputFunctionsParser
chain = (
{"doc": lambda x: x.page_content}
| ChatPromptTemplate.from_template(
"Generate a list of exactly 3 hypothetical questions that the below document could be used to answer:\n\n{doc}"
)
| ChatOpenAI(max_retries=0, model="gpt-4").bind(
functions=functions, function_call={"name": "hypothetical_questions"}
)
| JsonKeyOutputFunctionsParser(key_name="questions")
)
chain.invoke(docs[0])
hypothetical_questions = chain.batch(docs, {"max_concurrency": 5})
vectorstore = Chroma(
collection_name="hypo-questions", embedding_function=OpenAIEmbeddings()
)
store = | InMemoryByteStore() | langchain.storage.InMemoryByteStore |
from langchain_experimental.llm_symbolic_math.base import LLMSymbolicMathChain
from langchain_openai import OpenAI
llm = OpenAI(temperature=0)
llm_symbolic_math = | LLMSymbolicMathChain.from_llm(llm) | langchain_experimental.llm_symbolic_math.base.LLMSymbolicMathChain.from_llm |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet pipeline-ai')
import os
from langchain.chains import LLMChain
from langchain.prompts import PromptTemplate
from langchain_community.llms import PipelineAI
os.environ["PIPELINE_API_KEY"] = "YOUR_API_KEY_HERE"
llm = | PipelineAI(pipeline_key="YOUR_PIPELINE_KEY", pipeline_kwargs={...}) | langchain_community.llms.PipelineAI |
from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
from langchain_openai.chat_models import ChatOpenAI
model = | ChatOpenAI() | langchain_openai.chat_models.ChatOpenAI |
meals = [
"Beef Enchiladas with Feta cheese. Mexican-Greek fusion",
"Chicken Flatbreads with red sauce. Italian-Mexican fusion",
"Veggie sweet potato quesadillas with vegan cheese",
"One-Pan Tortelonni bake with peppers and onions",
]
from langchain_openai import OpenAI
llm = OpenAI(model="gpt-3.5-turbo-instruct")
from langchain.prompts import PromptTemplate
PROMPT_TEMPLATE = """Here is the description of a meal: "{meal}".
Embed the meal into the given text: "{text_to_personalize}".
Prepend a personalized message including the user's name "{user}"
and their preference "{preference}".
Make it sound good.
"""
PROMPT = PromptTemplate(
input_variables=["meal", "text_to_personalize", "user", "preference"],
template=PROMPT_TEMPLATE,
)
import langchain_experimental.rl_chain as rl_chain
chain = rl_chain.PickBest.from_llm(llm=llm, prompt=PROMPT)
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs \
believe you will love it!",
)
print(response["response"])
for _ in range(5):
try:
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
except Exception as e:
print(e)
print(response["response"])
print()
scoring_criteria_template = (
"Given {preference} rank how good or bad this selection is {meal}"
)
chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=rl_chain.AutoSelectionScorer(
llm=llm, scoring_criteria_template_str=scoring_criteria_template
),
)
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
print(response["response"])
selection_metadata = response["selection_metadata"]
print(
f"selected index: {selection_metadata.selected.index}, score: {selection_metadata.selected.score}"
)
class CustomSelectionScorer(rl_chain.SelectionScorer):
def score_response(
self, inputs, llm_response: str, event: rl_chain.PickBestEvent
) -> float:
print(event.based_on)
print(event.to_select_from)
selected_meal = event.to_select_from["meal"][event.selected.index]
print(f"selected meal: {selected_meal}")
if "Tom" in event.based_on["user"]:
if "Vegetarian" in event.based_on["preference"]:
if "Chicken" in selected_meal or "Beef" in selected_meal:
return 0.0
else:
return 1.0
else:
if "Chicken" in selected_meal or "Beef" in selected_meal:
return 1.0
else:
return 0.0
else:
raise NotImplementedError("I don't know how to score this user")
chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=CustomSelectionScorer(),
)
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
class CustomSelectionScorer(rl_chain.SelectionScorer):
def score_preference(self, preference, selected_meal):
if "Vegetarian" in preference:
if "Chicken" in selected_meal or "Beef" in selected_meal:
return 0.0
else:
return 1.0
else:
if "Chicken" in selected_meal or "Beef" in selected_meal:
return 1.0
else:
return 0.0
def score_response(
self, inputs, llm_response: str, event: rl_chain.PickBestEvent
) -> float:
selected_meal = event.to_select_from["meal"][event.selected.index]
if "Tom" in event.based_on["user"]:
return self.score_preference(event.based_on["preference"], selected_meal)
elif "Anna" in event.based_on["user"]:
return self.score_preference(event.based_on["preference"], selected_meal)
else:
raise NotImplementedError("I don't know how to score this user")
chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=CustomSelectionScorer(),
metrics_step=5,
metrics_window_size=5, # rolling window average
)
random_chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=CustomSelectionScorer(),
metrics_step=5,
metrics_window_size=5, # rolling window average
policy=rl_chain.PickBestRandomPolicy, # set the random policy instead of default
)
for _ in range(20):
try:
chain.run(
meal= | rl_chain.ToSelectFrom(meals) | langchain_experimental.rl_chain.ToSelectFrom |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-nvidia-ai-endpoints')
import getpass
import os
if not os.environ.get("NVIDIA_API_KEY", "").startswith("nvapi-"):
nvapi_key = getpass.getpass("Enter your NVIDIA API key: ")
assert nvapi_key.startswith("nvapi-"), f"{nvapi_key[:5]}... is not a valid key"
os.environ["NVIDIA_API_KEY"] = nvapi_key
from langchain_nvidia_ai_endpoints import ChatNVIDIA
llm = ChatNVIDIA(model="mixtral_8x7b")
result = llm.invoke("Write a ballad about LangChain.")
print(result.content)
print(llm.batch(["What's 2*3?", "What's 2*6?"]))
for chunk in llm.stream("How far can a seagull fly in one day?"):
print(chunk.content, end="|")
async for chunk in llm.astream(
"How long does it take for monarch butterflies to migrate?"
):
print(chunk.content, end="|")
ChatNVIDIA.get_available_models()
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate
from langchain_nvidia_ai_endpoints import ChatNVIDIA
prompt = ChatPromptTemplate.from_messages(
[("system", "You are a helpful AI assistant named Fred."), ("user", "{input}")]
)
chain = prompt | ChatNVIDIA(model="llama2_13b") | StrOutputParser()
for txt in chain.stream({"input": "What's your name?"}):
print(txt, end="")
prompt = ChatPromptTemplate.from_messages(
[
(
"system",
"You are an expert coding AI. Respond only in valid python; no narration whatsoever.",
),
("user", "{input}"),
]
)
chain = prompt | ChatNVIDIA(model="llama2_code_70b") | | StrOutputParser() | langchain_core.output_parsers.StrOutputParser |
get_ipython().run_line_magic('pip', 'install -U --quiet langchain langchain_community openai chromadb langchain-experimental')
get_ipython().run_line_magic('pip', 'install --quiet "unstructured[all-docs]" pypdf pillow pydantic lxml pillow matplotlib chromadb tiktoken')
import logging
import zipfile
import requests
logging.basicConfig(level=logging.INFO)
data_url = "https://storage.googleapis.com/benchmarks-artifacts/langchain-docs-benchmarking/cj.zip"
result = requests.get(data_url)
filename = "cj.zip"
with open(filename, "wb") as file:
file.write(result.content)
with zipfile.ZipFile(filename, "r") as zip_ref:
zip_ref.extractall()
from langchain_community.document_loaders import PyPDFLoader
loader = PyPDFLoader("./cj/cj.pdf")
docs = loader.load()
tables = []
texts = [d.page_content for d in docs]
len(texts)
from langchain.prompts import PromptTemplate
from langchain_community.chat_models import ChatVertexAI
from langchain_community.llms import VertexAI
from langchain_core.messages import AIMessage
from langchain_core.output_parsers import StrOutputParser
from langchain_core.runnables import RunnableLambda
def generate_text_summaries(texts, tables, summarize_texts=False):
"""
Summarize text elements
texts: List of str
tables: List of str
summarize_texts: Bool to summarize texts
"""
prompt_text = """You are an assistant tasked with summarizing tables and text for retrieval. \
These summaries will be embedded and used to retrieve the raw text or table elements. \
Give a concise summary of the table or text that is well optimized for retrieval. Table or text: {element} """
prompt = PromptTemplate.from_template(prompt_text)
empty_response = RunnableLambda(
lambda x: AIMessage(content="Error processing document")
)
model = VertexAI(
temperature=0, model_name="gemini-pro", max_output_tokens=1024
).with_fallbacks([empty_response])
summarize_chain = {"element": lambda x: x} | prompt | model | StrOutputParser()
text_summaries = []
table_summaries = []
if texts and summarize_texts:
text_summaries = summarize_chain.batch(texts, {"max_concurrency": 1})
elif texts:
text_summaries = texts
if tables:
table_summaries = summarize_chain.batch(tables, {"max_concurrency": 1})
return text_summaries, table_summaries
text_summaries, table_summaries = generate_text_summaries(
texts, tables, summarize_texts=True
)
len(text_summaries)
import base64
import os
from langchain_core.messages import HumanMessage
def encode_image(image_path):
"""Getting the base64 string"""
with open(image_path, "rb") as image_file:
return base64.b64encode(image_file.read()).decode("utf-8")
def image_summarize(img_base64, prompt):
"""Make image summary"""
model = ChatVertexAI(model_name="gemini-pro-vision", max_output_tokens=1024)
msg = model(
[
HumanMessage(
content=[
{"type": "text", "text": prompt},
{
"type": "image_url",
"image_url": {"url": f"data:image/jpeg;base64,{img_base64}"},
},
]
)
]
)
return msg.content
def generate_img_summaries(path):
"""
Generate summaries and base64 encoded strings for images
path: Path to list of .jpg files extracted by Unstructured
"""
img_base64_list = []
image_summaries = []
prompt = """You are an assistant tasked with summarizing images for retrieval. \
These summaries will be embedded and used to retrieve the raw image. \
Give a concise summary of the image that is well optimized for retrieval."""
for img_file in sorted(os.listdir(path)):
if img_file.endswith(".jpg"):
img_path = os.path.join(path, img_file)
base64_image = encode_image(img_path)
img_base64_list.append(base64_image)
image_summaries.append(image_summarize(base64_image, prompt))
return img_base64_list, image_summaries
img_base64_list, image_summaries = generate_img_summaries("./cj")
len(image_summaries)
import uuid
from langchain.retrievers.multi_vector import MultiVectorRetriever
from langchain.storage import InMemoryStore
from langchain_community.embeddings import VertexAIEmbeddings
from langchain_community.vectorstores import Chroma
from langchain_core.documents import Document
def create_multi_vector_retriever(
vectorstore, text_summaries, texts, table_summaries, tables, image_summaries, images
):
"""
Create retriever that indexes summaries, but returns raw images or texts
"""
store = InMemoryStore()
id_key = "doc_id"
retriever = MultiVectorRetriever(
vectorstore=vectorstore,
docstore=store,
id_key=id_key,
)
def add_documents(retriever, doc_summaries, doc_contents):
doc_ids = [str(uuid.uuid4()) for _ in doc_contents]
summary_docs = [
Document(page_content=s, metadata={id_key: doc_ids[i]})
for i, s in enumerate(doc_summaries)
]
retriever.vectorstore.add_documents(summary_docs)
retriever.docstore.mset(list(zip(doc_ids, doc_contents)))
if text_summaries:
add_documents(retriever, text_summaries, texts)
if table_summaries:
add_documents(retriever, table_summaries, tables)
if image_summaries:
add_documents(retriever, image_summaries, images)
return retriever
vectorstore = Chroma(
collection_name="mm_rag_cj_blog",
embedding_function= | VertexAIEmbeddings(model_name="textembedding-gecko@latest") | langchain_community.embeddings.VertexAIEmbeddings |