Python logging to file and screen with different loglevels
Goal: log everything to file, but show only part of the info on the screen. Previously: 220914-2249 Python logging change level through context manager and operator magic
My current understanding:
format = "[%(asctime)s %(name)s:%(lineno)s %(levelname)s]: %(message)s"
# Set it up, no handlers -> no default StreamHandler
# this loglevel is the one handlers will have access to!
logging.basicConfig(
level=logging.DEBUG,
handlers=[]
)
# Format, if we don't do this will be literally none
fmtr = logging.Formatter(fmt=format)
sh = logging.StreamHandler()
fh = logging.FileHandler("debug.log")
fh.setFormatter(fmtr)
sh.setFormatter(fmtr)
# Screen output set to whatever we want, fh to debug
sh.setLevel(loglevel)
fh.setLevel(logging.DEBUG)
# Add both handlers to root, both get propagated to logger etc.
logging.getLogger('').addHandler(sh)
logging.getLogger('').addHandler(fh)
Even though i did logger = logging.getLogger(__package__) at the very top of the file before the above bits, I can do logger.debug() etc. and it follows these settings. Nice.
Nel mezzo del deserto posso dire tutto quello che voglio.