I hope this is clear enough, I’m some having trouble myself in breaking
this down properly and I’m not finding my way around the logging module
well enough to properly find a good solution.
Basic
I’ve got two packages, one which defines some functionality, like “shout()”
and another which wraps the original to provide additional functionality.
>>> import original>>> original.shout()
[original] - Heyaa
What happens
The wrapper then “wraps” the original, and adds another line to shot()
>>> import wrapper>>> wrapper.shout()
[original] - Heyaa
[wrapper] - Woorld
Here, the wrapper introduces it’s own logging, distinguished by the [wrapper]
- prefix.
What I’m looking for
However, what I’d like is for the wrapper to “take over” the original
logging, and log it as its own.
>>> import wrapper>>> wrapper.shout()
[wrapper] - Heyaa
[wrapper] - Woorld
So as to fully encapsulate the original, and not leave any hint towards it
being a wrapper to begin with.
Questions
1. Does it make sense?
2. What are the alternatives?
3. How do I make it work?
Implementation
Let me illustrate how I’m doing it currently, without fully encapsulating
the wrapper; 4 files @ 2 inits and 2 implementations.
*original/__init__.py*
# original/__init__.py
def setup_log():
import logging
formatter = logging.Formatter('[original] - %(message)s')
log = logging.getLogger('original')
log.setLevel(logging.INFO)
stream_handler = logging.StreamHandler()
stream_handler.setFormatter(formatter)
log.addHandler(stream_handler)
*wrapper/__init__.py*
# wrapper/__init__.py
def setup_log():
import logging
formatter = logging.Formatter('[original] - %(message)s')
log = logging.getLogger('wrapper')
log.setLevel(logging.INFO)
stream_handler = logging.StreamHandler()
stream_handler.setFormatter(formatter)
log.addHandler(stream_handler)
*original/player.py*
# original/player.py
import logging
log = logging.getLogger('original')
def shout():
log.info("Heyaa")
if __name__ == '__main__':
import original
original.setup_log()
shout()
# [original] - Heyaa
*wrapper/player.py*
# wrapper/player.pyimport logging
log = logging.getLogger('wrapper')
from original import player
def shout():
player.shout()
log.info("Woorld")
if __name__ == '__main__':
import wrapper
import original
wrapper.setup_log()
original.setup_log()
shout()
# [original] - Heyaa# [wrapper] - Woorld
Best,
Marcus
--
*Marcus Ottosson*
[email protected]
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