Python Logging (function name, file name, line number) using a single file

Question

I am trying to learn how an application works. And for this I am inserting debug commands as the first line of each function\'s body with the goal of logging the function\'s

Answer 1

The correct answer for this is to use the already provided funcName variable

import logging
logger = logging.getLogger('root')
FORMAT = "[%(filename)s:%(lineno)s - %(funcName)20s() ] %(message)s"
logging.basicConfig(format=FORMAT)
logger.setLevel(logging.DEBUG)

Then anywhere you want, just add:

logger.debug('your message') 

Example output from a script I'm working on right now:

[invRegex.py:150 -          handleRange() ] ['[A-Z]']
[invRegex.py:155 -     handleRepetition() ] [[<__main__.CharacterRangeEmitter object at 0x10ba03050>, '{', '1', '}']]
[invRegex.py:197 -          handleMacro() ] ['\\d']
[invRegex.py:155 -     handleRepetition() ] [[<__main__.CharacterRangeEmitter object at 0x10ba03950>, '{', '1', '}']]
[invRegex.py:210 -       handleSequence() ] [[<__main__.GroupEmitter object at 0x10b9fedd0>, <__main__.GroupEmitter object at 0x10ba03ad0>]]