Viewing file:  logging.py (1.71 KB) -rw-r--r--
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import logging
import sys
VERBOSITY = 3
# The root logger for the whole top-level package:
_logger = logging.getLogger(__name__.rpartition('.')[0])
def configure_logger(logger, verbosity=VERBOSITY, *,
logfile=None,
maxlevel=logging.CRITICAL,
):
level = max(1, # 0 disables it, so we use the next lowest.
min(maxlevel,
maxlevel - verbosity * 10))
logger.setLevel(level)
#logger.propagate = False
if not logger.handlers:
if logfile:
handler = logging.FileHandler(logfile)
else:
handler = logging.StreamHandler(sys.stdout)
handler.setLevel(level)
#handler.setFormatter(logging.Formatter())
logger.addHandler(handler)
# In case the provided logger is in a sub-package...
if logger is not _logger:
configure_logger(
_logger,
verbosity,
logfile=logfile,
maxlevel=maxlevel,
)
def hide_emit_errors():
"""Ignore errors while emitting log entries.
Rather than printing a message describing the error, we show nothing.
"""
# For now we simply ignore all exceptions. If we wanted to ignore
# specific ones (e.g. BrokenPipeError) then we would need to use
# a Handler subclass with a custom handleError() method.
orig = logging.raiseExceptions
logging.raiseExceptions = False
def restore():
logging.raiseExceptions = orig
return restore
class Printer:
def __init__(self, verbosity=VERBOSITY):
self.verbosity = verbosity
def info(self, *args, **kwargs):
if self.verbosity < 3:
return
print(*args, **kwargs)
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