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# coding=utf-8 | |
# Copyright 2020 Optuna, Hugging Face | |
# | |
# Licensed under the Apache License, Version 2.0 (the "License"); | |
# you may not use this file except in compliance with the License. | |
# You may obtain a copy of the License at | |
# | |
# http://www.apache.org/licenses/LICENSE-2.0 | |
# | |
# Unless required by applicable law or agreed to in writing, software | |
# distributed under the License is distributed on an "AS IS" BASIS, | |
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
# See the License for the specific language governing permissions and | |
# limitations under the License. | |
"""Logging utilities.""" | |
import logging | |
import os | |
from logging import ( | |
CRITICAL, # NOQA | |
DEBUG, # NOQA | |
ERROR, # NOQA | |
FATAL, # NOQA | |
INFO, # NOQA | |
NOTSET, # NOQA | |
WARN, # NOQA | |
WARNING, # NOQA | |
) | |
from typing import Optional | |
log_levels = { | |
"debug": logging.DEBUG, | |
"info": logging.INFO, | |
"warning": logging.WARNING, | |
"error": logging.ERROR, | |
"critical": logging.CRITICAL, | |
} | |
_default_log_level = logging.WARNING | |
def _get_library_name() -> str: | |
return __name__.split(".")[0] | |
def _get_library_root_logger() -> logging.Logger: | |
return logging.getLogger(_get_library_name()) | |
def _get_default_logging_level(): | |
""" | |
If `HF_HUB_VERBOSITY` env var is set to one of the valid choices return that as the new default level. If it is not | |
- fall back to `_default_log_level` | |
""" | |
env_level_str = os.getenv("HF_HUB_VERBOSITY", None) | |
if env_level_str: | |
if env_level_str in log_levels: | |
return log_levels[env_level_str] | |
else: | |
logging.getLogger().warning( | |
f"Unknown option HF_HUB_VERBOSITY={env_level_str}, has to be one of: { ', '.join(log_levels.keys()) }" | |
) | |
return _default_log_level | |
def _configure_library_root_logger() -> None: | |
library_root_logger = _get_library_root_logger() | |
library_root_logger.addHandler(logging.StreamHandler()) | |
library_root_logger.setLevel(_get_default_logging_level()) | |
def _reset_library_root_logger() -> None: | |
library_root_logger = _get_library_root_logger() | |
library_root_logger.setLevel(logging.NOTSET) | |
def get_logger(name: Optional[str] = None) -> logging.Logger: | |
""" | |
Returns a logger with the specified name. This function is not supposed | |
to be directly accessed by library users. | |
Args: | |
name (`str`, *optional*): | |
The name of the logger to get, usually the filename | |
Example: | |
```python | |
>>> from huggingface_hub import get_logger | |
>>> logger = get_logger(__file__) | |
>>> logger.set_verbosity_info() | |
``` | |
""" | |
if name is None: | |
name = _get_library_name() | |
return logging.getLogger(name) | |
def get_verbosity() -> int: | |
"""Return the current level for the HuggingFace Hub's root logger. | |
Returns: | |
Logging level, e.g., `huggingface_hub.logging.DEBUG` and | |
`huggingface_hub.logging.INFO`. | |
<Tip> | |
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` | |
</Tip> | |
""" | |
return _get_library_root_logger().getEffectiveLevel() | |
def set_verbosity(verbosity: int) -> None: | |
""" | |
Sets the level for the HuggingFace Hub's root logger. | |
Args: | |
verbosity (`int`): | |
Logging level, e.g., `huggingface_hub.logging.DEBUG` and | |
`huggingface_hub.logging.INFO`. | |
""" | |
_get_library_root_logger().setLevel(verbosity) | |
def set_verbosity_info(): | |
""" | |
Sets the verbosity to `logging.INFO`. | |
""" | |
return set_verbosity(INFO) | |
def set_verbosity_warning(): | |
""" | |
Sets the verbosity to `logging.WARNING`. | |
""" | |
return set_verbosity(WARNING) | |
def set_verbosity_debug(): | |
""" | |
Sets the verbosity to `logging.DEBUG`. | |
""" | |
return set_verbosity(DEBUG) | |
def set_verbosity_error(): | |
""" | |
Sets the verbosity to `logging.ERROR`. | |
""" | |
return set_verbosity(ERROR) | |
def disable_propagation() -> None: | |
""" | |
Disable propagation of the library log outputs. Note that log propagation is | |
disabled by default. | |
""" | |
_get_library_root_logger().propagate = False | |
def enable_propagation() -> None: | |
""" | |
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. | |
""" | |
_get_library_root_logger().propagate = True | |
_configure_library_root_logger() | |