Hub Python Library documentation

Utilities

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Utilities

Configure logging

The huggingface_hub package exposes a logging utility to control the logging level of the package itself. You can import it as such:

from huggingface_hub import logging

Then, you may define the verbosity in order to update the amount of logs you’ll see:

from huggingface_hub import logging

logging.set_verbosity_error()
logging.set_verbosity_warning()
logging.set_verbosity_info()
logging.set_verbosity_debug()

logging.set_verbosity(...)

The levels should be understood as follows:

  • error: only show critical logs about usage which may result in an error or unexpected behavior.
  • warning: show logs that aren’t critical but usage may result in unintended behavior. Additionally, important informative logs may be shown.
  • info: show most logs, including some verbose logging regarding what is happening under the hood. If something is behaving in an unexpected manner, we recommend switching the verbosity level to this in order to get more information.
  • debug: show all logs, including some internal logs which may be used to track exactly what’s happening under the hood.

huggingface_hub.utils.logging.get_verbosity

< >

( )

Return the current level for the HuggingFace Hub’s root logger.

HuggingFace Hub has following logging levels:

  • huggingface_hub.logging.CRITICAL, huggingface_hub.logging.FATAL
  • huggingface_hub.logging.ERROR
  • huggingface_hub.logging.WARNING, huggingface_hub.logging.WARN
  • huggingface_hub.logging.INFO
  • huggingface_hub.logging.DEBUG

huggingface_hub.utils.logging.set_verbosity

< >

( verbosity: int )

Parameters

  • verbosity (int) — Logging level, e.g., huggingface_hub.logging.DEBUG and huggingface_hub.logging.INFO.

Sets the level for the HuggingFace Hub’s root logger.

huggingface_hub.utils.logging.set_verbosity_info

< >

( )

Sets the verbosity to logging.INFO.

huggingface_hub.utils.logging.set_verbosity_debug

< >

( )

Sets the verbosity to logging.DEBUG.

huggingface_hub.utils.logging.set_verbosity_warning

< >

( )

Sets the verbosity to logging.WARNING.

huggingface_hub.utils.logging.set_verbosity_error

< >

( )

Sets the verbosity to logging.ERROR.

huggingface_hub.utils.logging.disable_propagation

< >

( )

Disable propagation of the library log outputs. Note that log propagation is disabled by default.

huggingface_hub.utils.logging.enable_propagation

< >

( )

Enable propagation of the library log outputs. Please disable the HuggingFace Hub’s default handler to prevent double logging if the root logger has been configured.

Repo-specific helper methods

The methods exposed below are relevant when modifying modules from the huggingface_hub library itself. Using these shouldn’t be necessary if you use huggingface_hub and you don’t modify them.

huggingface_hub.utils.logging.get_logger

< >

( name: typing.Optional[str] = None )

Parameters

  • name (str, optional) — The name of the logger to get, usually the filename

Returns a logger with the specified name. This function is not supposed to be directly accessed by library users.

Example:

>>> from huggingface_hub import get_logger

>>> logger = get_logger(__file__)
>>> logger.set_verbosity_info()

Configure progress bars

Progress bars are a useful tool to display information to the user while a long-running task is being executed (e.g. when downloading or uploading files). huggingface_hub exposes a tqdm wrapper to display progress bars in a consistent way across the library.

By default, progress bars are enabled. You can disable them globally by setting HF_HUB_DISABLE_PROGRESS_BARS environment variable. You can also enable/disable them using enable_progress_bars() and disable_progress_bars(). If set, the environment variable has priority on the helpers.

>>> from huggingface_hub import snapshot_download
>>> from huggingface_hub.utils import are_progress_bars_disabled, disable_progress_bars, enable_progress_bars

>>> # Disable progress bars globally
>>> disable_progress_bars()

>>> # Progress bar will not be shown !
>>> snapshot_download("gpt2")

>>> are_progress_bars_disabled()
True

>>> # Re-enable progress bars globally
>>> enable_progress_bars()

Group-specific control of progress bars

You can also enable or disable progress bars for specific groups. This allows you to manage progress bar visibility more granularly within different parts of your application or library. When a progress bar is disabled for a group, all subgroups under it are also affected unless explicitly overridden.

# Disable progress bars for a specific group
>>> disable_progress_bars("peft.foo")
>>> assert not are_progress_bars_disabled("peft")
>>> assert not are_progress_bars_disabled("peft.something")
>>> assert are_progress_bars_disabled("peft.foo")
>>> assert are_progress_bars_disabled("peft.foo.bar")

# Re-enable progress bars for a subgroup
>>> enable_progress_bars("peft.foo.bar")
>>> assert are_progress_bars_disabled("peft.foo")
>>> assert not are_progress_bars_disabled("peft.foo.bar")

# Use groups with tqdm
# No progress bar for `name="peft.foo"`
>>> for _ in tqdm(range(5), name="peft.foo"):
...     pass

# Progress bar will be shown for `name="peft.foo.bar"`
>>> for _ in tqdm(range(5), name="peft.foo.bar"):
...     pass
100%|███████████████████████████████████████| 5/5 [00:00<00:00, 117817.53it/s]

are_progress_bars_disabled

huggingface_hub.utils.are_progress_bars_disabled

< >

( name: typing.Optional[str] = None ) bool

Parameters

  • name (str, optional) — The group name to check; if None, checks the global setting.

Returns

bool

True if progress bars are disabled, False otherwise.

Check if progress bars are disabled globally or for a specific group.

This function returns whether progress bars are disabled for a given group or globally. It checks the HF_HUB_DISABLE_PROGRESS_BARS environment variable first, then the programmatic settings.

disable_progress_bars

huggingface_hub.utils.disable_progress_bars

< >

( name: typing.Optional[str] = None )

Parameters

  • name (str, optional) — The name of the group for which to disable the progress bars. If None, progress bars are disabled globally.

Raises

Warning

  • Warning — If the environment variable precludes changes.

Disable progress bars either globally or for a specified group.

This function updates the state of progress bars based on a group name. If no group name is provided, all progress bars are disabled. The operation respects the HF_HUB_DISABLE_PROGRESS_BARS environment variable’s setting.

enable_progress_bars

huggingface_hub.utils.enable_progress_bars

< >

( name: typing.Optional[str] = None )

Parameters

  • name (str, optional) — The name of the group for which to enable the progress bars. If None, progress bars are enabled globally.

Raises

Warning

  • Warning — If the environment variable precludes changes.

Enable progress bars either globally or for a specified group.

This function sets the progress bars to enabled for the specified group or globally if no group is specified. The operation is subject to the HF_HUB_DISABLE_PROGRESS_BARS environment setting.

Configuring the HTTP Backend

In huggingface_hub v0.x, HTTP requests were handled with requests, and configuration was done via configure_http_backend. Since we now use httpx, configuration works differently: you must provide a factory function that takes no arguments and returns an httpx.Client. You can review the default implementation here to see which parameters are used by default.

In some setups, you may need to control how HTTP requests are made, for example when working behind a proxy. The huggingface_hub library allows you to configure this globally with set_client_factory(). After configuration, all requests to the Hub will use your custom settings. Since huggingface_hub relies on httpx.Client under the hood, you can check the httpx documentation for details on available parameters.

If you are building a third-party library and need to make direct requests to the Hub, use get_session() to obtain a correctly configured httpx client. Replace any direct httpx.get(...) calls with get_session().get(...) to ensure proper behavior.

huggingface_hub.set_client_factory

< >

( client_factory: typing.Callable[[], httpx.Client] )

Set the HTTP client factory to be used by huggingface_hub.

The client factory is a method that returns a httpx.Client object. On the first call to get_client the client factory will be used to create a new httpx.Client object that will be shared between all calls made by huggingface_hub.

This can be useful if you are running your scripts in a specific environment requiring custom configuration (e.g. custom proxy or certifications).

Use get_client to get a correctly configured httpx.Client.

huggingface_hub.get_session

< >

( )

Get a httpx.Client object, using the transport factory from the user.

This client is shared between all calls made by huggingface_hub. Therefore you should not close it manually.

Use set_client_factory() to customize the httpx.Client.

In rare cases, you may want to manually close the current session (for example, after a transient SSLError). You can do this with close_session(). A new session will automatically be created on the next call to get_session().

Sessions are always closed automatically when the process exits.

huggingface_hub.close_session

< >

( )

Close the global httpx.Client used by huggingface_hub.

If a Client is closed, it will be recreated on the next call to get_client.

Can be useful if e.g. an SSL certificate has been updated.

For async code, use set_async_client_factory() to configure an httpx.AsyncClient and get_async_session() to retrieve one.

huggingface_hub.set_async_client_factory

< >

( async_client_factory: typing.Callable[[], httpx.AsyncClient] )

Set the HTTP async client factory to be used by huggingface_hub.

The async client factory is a method that returns a httpx.AsyncClient object. This can be useful if you are running your scripts in a specific environment requiring custom configuration (e.g. custom proxy or certifications). Use get_async_client to get a correctly configured httpx.AsyncClient.

Contrary to the httpx.Client that is shared between all calls made by huggingface_hub, the httpx.AsyncClient is not shared. It is recommended to use an async context manager to ensure the client is properly closed when the context is exited.

huggingface_hub.get_async_session

< >

( )

Return a httpx.AsyncClient object, using the transport factory from the user.

Use set_async_client_factory() to customize the httpx.AsyncClient.

Contrary to the httpx.Client that is shared between all calls made by huggingface_hub, the httpx.AsyncClient is not shared. It is recommended to use an async context manager to ensure the client is properly closed when the context is exited.

Unlike the synchronous client, the lifecycle of the async client is not managed automatically. Use an async context manager to handle it properly.

Handle HTTP errors

huggingface_hub defines its own HTTP errors to refine the HTTPError raised by requests with additional information sent back by the server.

Raise for status

hf_raise_for_status() is meant to be the central method to “raise for status” from any request made to the Hub. It wraps the base requests.raise_for_status to provide additional information. Any HTTPError thrown is converted into a HfHubHTTPError.

import requests
from huggingface_hub.utils import hf_raise_for_status, HfHubHTTPError

response = requests.post(...)
try:
    hf_raise_for_status(response)
except HfHubHTTPError as e:
    print(str(e)) # formatted message
    e.request_id, e.server_message # details returned by server

    # Complete the error message with additional information once it's raised
    e.append_to_message("\n`create_commit` expects the repository to exist.")
    raise

huggingface_hub.hf_raise_for_status

< >

( response: Response endpoint_name: typing.Optional[str] = None )

Parameters

  • response (Response) — Response from the server.
  • endpoint_name (str, optional) — Name of the endpoint that has been called. If provided, the error message will be more complete.

Internal version of response.raise_for_status() that will refine a potential HTTPError. Raised exception will be an instance of HfHubHTTPError.

This helper is meant to be the unique method to raise_for_status when making a call to the Hugging Face Hub.

Raises when the request has failed:

  • RepositoryNotFoundError If the repository to download from cannot be found. This may be because it doesn’t exist, because repo_type is not set correctly, or because the repo is private and you do not have access.
  • GatedRepoError If the repository exists but is gated and the user is not on the authorized list.
  • RevisionNotFoundError If the repository exists but the revision couldn’t be find.
  • ~utils.RemoteEntryNotFoundError If the repository exists but the entry (e.g. the requested file) couldn’t be find.
  • BadRequestError If request failed with a HTTP 400 BadRequest error.
  • HfHubHTTPError If request failed for a reason not listed above.

HTTP errors

Here is a list of HTTP errors thrown in huggingface_hub.

HfHubHTTPError

HfHubHTTPError is the parent class for any HF Hub HTTP error. It takes care of parsing the server response and format the error message to provide as much information to the user as possible.

class huggingface_hub.errors.HfHubHTTPError

< >

( message: str response: Response server_message: typing.Optional[str] = None )

HTTPError to inherit from for any custom HTTP Error raised in HF Hub.

Any HTTPError is converted at least into a HfHubHTTPError. If some information is sent back by the server, it will be added to the error message.

Added details:

  • Request id from “X-Request-Id” header if exists. If not, fallback to “X-Amzn-Trace-Id” header if exists.
  • Server error message from the header “X-Error-Message”.
  • Server error message if we can found one in the response body.

Example:

    import httpx
    from huggingface_hub.utils import get_session, hf_raise_for_status, HfHubHTTPError

    response = get_session().post(...)
    try:
        hf_raise_for_status(response)
    except HfHubHTTPError as e:
        print(str(e)) # formatted message
        e.request_id, e.server_message # details returned by server

        # Complete the error message with additional information once it's raised
        e.append_to_message("
ate_commit` expects the repository to exist.")
        raise

append_to_message

< >

( additional_message: str )

Append additional information to the HfHubHTTPError initial message.

RepositoryNotFoundError

class huggingface_hub.errors.RepositoryNotFoundError

< >

( message: str response: Response server_message: typing.Optional[str] = None )

Raised when trying to access a hf.co URL with an invalid repository name, or with a private repo name the user does not have access to.

Example:

>>> from huggingface_hub import model_info
>>> model_info("<non_existent_repository>")
(...)
huggingface_hub.errors.RepositoryNotFoundError: 401 Client Error. (Request ID: PvMw_VjBMjVdMz53WKIzP)

Repository Not Found for url: https://huggingface.co/api/models/%3Cnon_existent_repository%3E.
Please make sure you specified the correct `repo_id` and `repo_type`.
If the repo is private, make sure you are authenticated.
Invalid username or password.

GatedRepoError

class huggingface_hub.errors.GatedRepoError

< >

( message: str response: Response server_message: typing.Optional[str] = None )

Raised when trying to access a gated repository for which the user is not on the authorized list.

Note: derives from RepositoryNotFoundError to ensure backward compatibility.

Example:

>>> from huggingface_hub import model_info
>>> model_info("<gated_repository>")
(...)
huggingface_hub.errors.GatedRepoError: 403 Client Error. (Request ID: ViT1Bf7O_026LGSQuVqfa)

Cannot access gated repo for url https://huggingface.co/api/models/ardent-figment/gated-model.
Access to model ardent-figment/gated-model is restricted and you are not in the authorized list.
Visit https://huggingface.co/ardent-figment/gated-model to ask for access.

RevisionNotFoundError

class huggingface_hub.errors.RevisionNotFoundError

< >

( message: str response: Response server_message: typing.Optional[str] = None )

Raised when trying to access a hf.co URL with a valid repository but an invalid revision.

Example:

>>> from huggingface_hub import hf_hub_download
>>> hf_hub_download('bert-base-cased', 'config.json', revision='<non-existent-revision>')
(...)
huggingface_hub.errors.RevisionNotFoundError: 404 Client Error. (Request ID: Mwhe_c3Kt650GcdKEFomX)

Revision Not Found for url: https://huggingface.co/bert-base-cased/resolve/%3Cnon-existent-revision%3E/config.json.

BadRequestError

class huggingface_hub.errors.BadRequestError

< >

( message: str response: Response server_message: typing.Optional[str] = None )

Raised by hf_raise_for_status when the server returns a HTTP 400 error.

Example:

>>> resp = httpx.post("hf.co/api/check", ...)
>>> hf_raise_for_status(resp, endpoint_name="check")
huggingface_hub.errors.BadRequestError: Bad request for check endpoint: {details} (Request ID: XXX)

EntryNotFoundError

class huggingface_hub.errors.EntryNotFoundError

< >

( )

Raised when entry not found, either locally or remotely.

Example:

>>> from huggingface_hub import hf_hub_download
>>> hf_hub_download('bert-base-cased', '<non-existent-file>')
(...)
huggingface_hub.errors.RemoteEntryNotFoundError (...)
>>> hf_hub_download('bert-base-cased', '<non-existent-file>', local_files_only=True)
(...)
huggingface_hub.utils.errors.LocalEntryNotFoundError (...)

RemoteEntryNotFoundError

class huggingface_hub.errors.RemoteEntryNotFoundError

< >

( message: str response: Response server_message: typing.Optional[str] = None )

Raised when trying to access a hf.co URL with a valid repository and revision but an invalid filename.

Example:

>>> from huggingface_hub import hf_hub_download
>>> hf_hub_download('bert-base-cased', '<non-existent-file>')
(...)
huggingface_hub.errors.EntryNotFoundError: 404 Client Error. (Request ID: 53pNl6M0MxsnG5Sw8JA6x)

Entry Not Found for url: https://huggingface.co/bert-base-cased/resolve/main/%3Cnon-existent-file%3E.

LocalEntryNotFoundError

class huggingface_hub.errors.LocalEntryNotFoundError

< >

( message: str )

Raised when trying to access a file or snapshot that is not on the disk when network is disabled or unavailable (connection issue). The entry may exist on the Hub.

Example:

>>> from huggingface_hub import hf_hub_download
>>> hf_hub_download('bert-base-cased', '<non-cached-file>',  local_files_only=True)
(...)
huggingface_hub.errors.LocalEntryNotFoundError: Cannot find the requested files in the disk cache and outgoing traffic has been disabled. To enable hf.co look-ups and downloads online, set 'local_files_only' to False.

OfflineModeIsEnabled

class huggingface_hub.errors.OfflineModeIsEnabled

< >

( )

Raised when a request is made but HF_HUB_OFFLINE=1 is set as environment variable.

Telemetry

huggingface_hub includes an helper to send telemetry data. This information helps us debug issues and prioritize new features. Users can disable telemetry collection at any time by setting the HF_HUB_DISABLE_TELEMETRY=1 environment variable. Telemetry is also disabled in offline mode (i.e. when setting HF_HUB_OFFLINE=1).

If you are maintainer of a third-party library, sending telemetry data is as simple as making a call to send_telemetry. Data is sent in a separate thread to reduce as much as possible the impact for users.

huggingface_hub.utils.send_telemetry

< >

( topic: str library_name: typing.Optional[str] = None library_version: typing.Optional[str] = None user_agent: typing.Union[dict, str, NoneType] = None )

Parameters

  • topic (str) — Name of the topic that is monitored. The topic is directly used to build the URL. If you want to monitor subtopics, just use ”/” separation. Examples: “gradio”, “transformers/examples”,…
  • library_name (str, optional) — The name of the library that is making the HTTP request. Will be added to the user-agent header.
  • library_version (str, optional) — The version of the library that is making the HTTP request. Will be added to the user-agent header.
  • user_agent (str, dict, optional) — The user agent info in the form of a dictionary or a single string. It will be completed with information about the installed packages.

Sends telemetry that helps tracking usage of different HF libraries.

This usage data helps us debug issues and prioritize new features. However, we understand that not everyone wants to share additional information, and we respect your privacy. You can disable telemetry collection by setting the HF_HUB_DISABLE_TELEMETRY=1 as environment variable. Telemetry is also disabled in offline mode (i.e. when setting HF_HUB_OFFLINE=1).

Telemetry collection is run in a separate thread to minimize impact for the user.

Example:

>>> from huggingface_hub.utils import send_telemetry

# Send telemetry without library information
>>> send_telemetry("ping")

# Send telemetry to subtopic with library information
>>> send_telemetry("gradio/local_link", library_name="gradio", library_version="3.22.1")

# Send telemetry with additional data
>>> send_telemetry(
...     topic="examples",
...     library_name="transformers",
...     library_version="4.26.0",
...     user_agent={"pipeline": "text_classification", "framework": "flax"},
... )

Validators

huggingface_hub includes custom validators to validate method arguments automatically. Validation is inspired by the work done in Pydantic to validate type hints but with more limited features.

Generic decorator

validate_hf_hub_args() is a generic decorator to encapsulate methods that have arguments following huggingface_hub’s naming. By default, all arguments that has a validator implemented will be validated.

If an input is not valid, a HFValidationError is thrown. Only the first non-valid value throws an error and stops the validation process.

Usage:

>>> from huggingface_hub.utils import validate_hf_hub_args

>>> @validate_hf_hub_args
... def my_cool_method(repo_id: str):
...     print(repo_id)

>>> my_cool_method(repo_id="valid_repo_id")
valid_repo_id

>>> my_cool_method("other..repo..id")
huggingface_hub.utils._validators.HFValidationError: Cannot have -- or .. in repo_id: 'other..repo..id'.

>>> my_cool_method(repo_id="other..repo..id")
huggingface_hub.utils._validators.HFValidationError: Cannot have -- or .. in repo_id: 'other..repo..id'.

validate_hf_hub_args

huggingface_hub.utils.validate_hf_hub_args

< >

( fn: ~CallableT )

Raises

HFValidationError

Validate values received as argument for any public method of huggingface_hub.

The goal of this decorator is to harmonize validation of arguments reused everywhere. By default, all defined validators are tested.

Validators:

  • validate_repo_id(): repo_id must be "repo_name" or "namespace/repo_name". Namespace is a username or an organization.
  • ~utils.smoothly_deprecate_legacy_arguments: Ignore proxies when downloading files (should be set globally).

Example:

>>> from huggingface_hub.utils import validate_hf_hub_args

>>> @validate_hf_hub_args
... def my_cool_method(repo_id: str):
...     print(repo_id)

>>> my_cool_method(repo_id="valid_repo_id")
valid_repo_id

>>> my_cool_method("other..repo..id")
huggingface_hub.utils._validators.HFValidationError: Cannot have -- or .. in repo_id: 'other..repo..id'.

>>> my_cool_method(repo_id="other..repo..id")
huggingface_hub.utils._validators.HFValidationError: Cannot have -- or .. in repo_id: 'other..repo..id'.

HFValidationError

class huggingface_hub.errors.HFValidationError

< >

( )

Generic exception thrown by huggingface_hub validators.

Inherits from ValueError.

Argument validators

Validators can also be used individually. Here is a list of all arguments that can be validated.

repo_id

huggingface_hub.utils.validate_repo_id

< >

( repo_id: str )

Validate repo_id is valid.

This is not meant to replace the proper validation made on the Hub but rather to avoid local inconsistencies whenever possible (example: passing repo_type in the repo_id is forbidden).

Rules:

  • Between 1 and 96 characters.
  • Either “repo_name” or “namespace/repo_name”
  • [a-zA-Z0-9] or ”-”, ”_”, ”.”
  • ”—” and ”..” are forbidden

Valid: "foo", "foo/bar", "123", "Foo-BAR_foo.bar123"

Not valid: "datasets/foo/bar", ".repo_id", "foo--bar", "foo.git"

Example:

>>> from huggingface_hub.utils import validate_repo_id
>>> validate_repo_id(repo_id="valid_repo_id")
>>> validate_repo_id(repo_id="other..repo..id")
huggingface_hub.utils._validators.HFValidationError: Cannot have -- or .. in repo_id: 'other..repo..id'.

Discussed in https://github.com/huggingface/huggingface_hub/issues/1008. In moon-landing (internal repository):

smoothly_deprecate_legacy_arguments

Not exactly a validator, but ran as well.

huggingface_hub.utils._validators.smoothly_deprecate_legacy_arguments

< >

( fn_name: str kwargs: dict )

Smoothly deprecate legacy arguments in the huggingface_hub codebase.

This function ignores some deprecated arguments from the kwargs and warns the user they are ignored. The goal is to avoid breaking existing code while guiding the user to the new way of doing things.

List of deprecated arguments:

  • proxies: To set up proxies, user must either use the HTTP_PROXY environment variable or configure the httpx.Client manually using the set_client_factory() function.

    In huggingface_hub 0.x, proxies was a dictionary directly passed to requests.request. In huggingface_hub 1.x, we migrated to httpx which does not support proxies the same way. In particular, it is not possible to configure proxies on a per-request basis. The solution is to configure it globally using the set_client_factory() function or using the HTTP_PROXY environment variable.

    More more details, see:

  • resume_download: deprecated without replacement. huggingface_hub always resumes downloads whenever possible.

  • force_filename: deprecated without replacement. Filename is always the same as on the Hub.

  • local_dir_use_symlinks: deprecated without replacement. Downloading to a local directory does not use symlinks anymore.

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