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# Ultralytics YOLO 🚀, AGPL-3.0 license
import requests
from ultralytics.data.utils import HUBDatasetStats
from ultralytics.hub.auth import Auth
from ultralytics.hub.session import HUBTrainingSession
from ultralytics.hub.utils import HUB_API_ROOT, HUB_WEB_ROOT, PREFIX, events
from ultralytics.utils import LOGGER, SETTINGS, checks
__all__ = (
"PREFIX",
"HUB_WEB_ROOT",
"HUBTrainingSession",
"login",
"logout",
"reset_model",
"export_fmts_hub",
"export_model",
"get_export",
"check_dataset",
"events",
)
def login(api_key: str = None, save=True) -> bool:
"""
Log in to the Ultralytics HUB API using the provided API key.
The session is not stored; a new session is created when needed using the saved SETTINGS or the HUB_API_KEY
environment variable if successfully authenticated.
Args:
api_key (str, optional): API key to use for authentication.
If not provided, it will be retrieved from SETTINGS or HUB_API_KEY environment variable.
save (bool, optional): Whether to save the API key to SETTINGS if authentication is successful.
Returns:
(bool): True if authentication is successful, False otherwise.
"""
checks.check_requirements("hub-sdk>=0.0.12")
from hub_sdk import HUBClient
api_key_url = f"{HUB_WEB_ROOT}/settings?tab=api+keys" # set the redirect URL
saved_key = SETTINGS.get("api_key")
active_key = api_key or saved_key
credentials = {"api_key": active_key} if active_key and active_key != "" else None # set credentials
client = HUBClient(credentials) # initialize HUBClient
if client.authenticated:
# Successfully authenticated with HUB
if save and client.api_key != saved_key:
SETTINGS.update({"api_key": client.api_key}) # update settings with valid API key
# Set message based on whether key was provided or retrieved from settings
log_message = (
"New authentication successful ✅" if client.api_key == api_key or not credentials else "Authenticated ✅"
)
LOGGER.info(f"{PREFIX}{log_message}")
return True
else:
# Failed to authenticate with HUB
LOGGER.info(f"{PREFIX}Get API key from {api_key_url} and then run 'yolo hub login API_KEY'")
return False
def logout():
"""
Log out of Ultralytics HUB by removing the API key from the settings file. To log in again, use 'yolo hub login'.
Example:
```python
from ultralytics import hub
hub.logout()
```
"""
SETTINGS["api_key"] = ""
LOGGER.info(f"{PREFIX}logged out ✅. To log in again, use 'yolo hub login'.")
def reset_model(model_id=""):
"""Reset a trained model to an untrained state."""
r = requests.post(f"{HUB_API_ROOT}/model-reset", json={"modelId": model_id}, headers={"x-api-key": Auth().api_key})
if r.status_code == 200:
LOGGER.info(f"{PREFIX}Model reset successfully")
return
LOGGER.warning(f"{PREFIX}Model reset failure {r.status_code} {r.reason}")
def export_fmts_hub():
"""Returns a list of HUB-supported export formats."""
from ultralytics.engine.exporter import export_formats
return list(export_formats()["Argument"][1:]) + ["ultralytics_tflite", "ultralytics_coreml"]
def export_model(model_id="", format="torchscript"):
"""Export a model to all formats."""
assert format in export_fmts_hub(), f"Unsupported export format '{format}', valid formats are {export_fmts_hub()}"
r = requests.post(
f"{HUB_API_ROOT}/v1/models/{model_id}/export", json={"format": format}, headers={"x-api-key": Auth().api_key}
)
assert r.status_code == 200, f"{PREFIX}{format} export failure {r.status_code} {r.reason}"
LOGGER.info(f"{PREFIX}{format} export started ✅")
def get_export(model_id="", format="torchscript"):
"""Get an exported model dictionary with download URL."""
assert format in export_fmts_hub(), f"Unsupported export format '{format}', valid formats are {export_fmts_hub()}"
r = requests.post(
f"{HUB_API_ROOT}/get-export",
json={"apiKey": Auth().api_key, "modelId": model_id, "format": format},
headers={"x-api-key": Auth().api_key},
)
assert r.status_code == 200, f"{PREFIX}{format} get_export failure {r.status_code} {r.reason}"
return r.json()
def check_dataset(path: str, task: str) -> None:
"""
Function for error-checking HUB dataset Zip file before upload. It checks a dataset for errors before it is uploaded
to the HUB. Usage examples are given below.
Args:
path (str): Path to data.zip (with data.yaml inside data.zip).
task (str): Dataset task. Options are 'detect', 'segment', 'pose', 'classify', 'obb'.
Example:
Download *.zip files from https://github.com/ultralytics/hub/tree/main/example_datasets
i.e. https://github.com/ultralytics/hub/raw/main/example_datasets/coco8.zip for coco8.zip.
```python
from ultralytics.hub import check_dataset
check_dataset("path/to/coco8.zip", task="detect") # detect dataset
check_dataset("path/to/coco8-seg.zip", task="segment") # segment dataset
check_dataset("path/to/coco8-pose.zip", task="pose") # pose dataset
check_dataset("path/to/dota8.zip", task="obb") # OBB dataset
check_dataset("path/to/imagenet10.zip", task="classify") # classification dataset
```
"""
HUBDatasetStats(path=path, task=task).get_json()
LOGGER.info(f"Checks completed correctly ✅. Upload this dataset to {HUB_WEB_ROOT}/datasets/.")
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