Python filtering logging logs and warnings
Filtering logging messages in Python
class LoggingFilter(logging.Filter):
def filter(self, record):
if "Connection pool is full" in record.getMessage():
return False
logger_cpool = logging.getLogger("urllib3.connectionpool")
logger_cpool.addFilter(LoggingFilter())
- All filters are applied until one returns
False, then the record is silenced, otherwise it gets logged normally. - Any magic can be done, incl. regex etc.!
- LogRecord attributes1 had a
logrecord.messagebut I didn’t have it in my case (todo), but I foundgetMessage().
Getting the name of your logger to apply the filter to
How to list all existing loggers using python.logging module - Stack Overflow:
import logging
loggers = [logging.getLogger(name) for name in logging.root.manager.loggerDict]
Warnings
Temporarily supressing warnings
warnings — Warning control — Python 3.12.0 documentation:
import warnings
def fxn():
warnings.warn("deprecated", DeprecationWarning)
with warnings.catch_warnings():
warnings.simplefilter("ignore")
fxn()
Dealing with warnings through logging
logging — Logging facility for Python — Python 3.12.0 documentation
# capture is True for enabling, False for disabling
logging.captureWarnings(capture)
# all warnings will become logs from logger 'py.warnings' with severity WARN
Nel mezzo del deserto posso dire tutto quello che voglio.