Update app.py

app.py

@@ -3,7 +3,6 @@ import os
 from langchain.chains import VectorDBQAWithSourcesChain
 import gradio as gr
 import langchain
-import weaviate
 from langchain.vectorstores import Weaviate
 import faiss
 import pickle
@@ -62,6 +61,8 @@ def chat(inp, history, paper_arxiv_url, api_key, agent):
     output = agent({"question": inp})
     answer = output["answer"]
     sources = output["sources"]
+    sources = sources.split(", ")
+    sources = ", ".join([s.title() for s in sources])
     history.append((inp, answer))
     history.append(("Sources?", sources))
     print(history)
@@ -119,11 +120,11 @@ with block:
     # )
 
     gr.HTML(
-        """This app demonstrates question-answering on any given arxiv paper"""
+        """Ask questions of any arXiv paper and get factual answers with sources"""
     )
 
     gr.HTML(
-        "<center>Powered by <a href='https://github.com/hwchase17/langchain'>LangChain 🦜️🔗</a></center>"
+        "<center>By <a href='https://twitter.com/0xjasper'>Jasper</a>, powered by <a href='https://github.com/hwchase17/langchain'>LangChain 🦜️🔗</a></center>"
     )
 
     submit.click(chat, inputs=[message, state, paper_arxiv_url, openai_api_key_textbox, agent_state], outputs=[chatbot, state])