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import logging
from lightning.pytorch.utilities import rank_zero_only
def get_pylogger(name: str = __name__) -> logging.Logger:
"""Initializes a multi-GPU-friendly python command line logger.
:param name: The name of the logger, defaults to ``__name__``.
:return: A logger object.
"""
logger = logging.getLogger(name)
# this ensures all logging levels get marked with the rank zero decorator
# otherwise logs would get multiplied for each GPU process in multi-GPU setup
logging_levels = ("debug", "info", "warning", "error", "exception", "fatal", "critical")
for level in logging_levels:
setattr(logger, level, rank_zero_only(getattr(logger, level)))
return logger
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