64 lines
1.7 KiB
Python
64 lines
1.7 KiB
Python
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import logging
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import sys
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VERBOSITY = 3
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# The root logger for the whole top-level package:
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_logger = logging.getLogger(__name__.rpartition('.')[0])
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def configure_logger(logger, verbosity=VERBOSITY, *,
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logfile=None,
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maxlevel=logging.CRITICAL,
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):
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level = max(1, # 0 disables it, so we use the next lowest.
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min(maxlevel,
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maxlevel - verbosity * 10))
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logger.setLevel(level)
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#logger.propagate = False
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if not logger.handlers:
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if logfile:
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handler = logging.FileHandler(logfile)
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else:
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handler = logging.StreamHandler(sys.stdout)
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handler.setLevel(level)
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#handler.setFormatter(logging.Formatter())
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logger.addHandler(handler)
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# In case the provided logger is in a sub-package...
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if logger is not _logger:
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configure_logger(
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_logger,
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verbosity,
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logfile=logfile,
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maxlevel=maxlevel,
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)
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def hide_emit_errors():
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"""Ignore errors while emitting log entries.
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Rather than printing a message desribing the error, we show nothing.
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"""
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# For now we simply ignore all exceptions. If we wanted to ignore
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# specific ones (e.g. BrokenPipeError) then we would need to use
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# a Handler subclass with a custom handleError() method.
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orig = logging.raiseExceptions
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logging.raiseExceptions = False
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def restore():
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logging.raiseExceptions = orig
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return restore
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class Printer:
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def __init__(self, verbosity=VERBOSITY):
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self.verbosity = verbosity
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def info(self, *args, **kwargs):
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if self.verbosity < 3:
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return
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print(*args, **kwargs)
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