Comments (6)
brandon-rhodes
commented on August 23, 2024
Could you supply me with a quick snippet of code that sets a handler logging level, together with how you would include it in the output? Thanks!
from logging_tree.
mgrandi
commented on August 23, 2024
Example code on how handlers / levels work:
import logging
import logging.handlers
import io
customStream = io.StringIO()
customStream2 = io.StringIO()
formatter = logging.Formatter(fmt='%(asctime)s - %(message)s')
rootLogger = logging.getLogger("")
rootLogger.setLevel("DEBUG") # make it so the logger itself lets all messages through
handlerOne = logging.StreamHandler(customStream)
handlerOne.setFormatter(formatter)
handlerOne.setLevel("DEBUG") # this handler will only allow messages with levels >= DEBUG
handlerTwo = logging.StreamHandler(customStream2)
handlerTwo.setFormatter(formatter)
handlerTwo.setLevel("ERROR") # this handler will only allow messages with levels >= ERROR
rootLogger.addHandler(handlerOne)
rootLogger.addHandler(handlerTwo)
rootLogger.debug("this is a DEBUG message")
rootLogger.info("this is an INFO message")
rootLogger.warning("this is a WARNING")
rootLogger.error("this is an ERROR")
rootLogger.critical("this is a CRITICAL message")
print("customStream output (DEBUG): \n{}".format(customStream.getvalue()))
print("customStream2 output(ERROR): \n{}".format(customStream2.getvalue()))and the output:
Corvidae:Desktop markgrandi$ python3 testHandler.py
customStream output (DEBUG):
2014-12-23 15:46:31,823 - this is a DEBUG message
2014-12-23 15:46:31,824 - this is an INFO message
2014-12-23 15:46:31,824 - this is a WARNING
2014-12-23 15:46:31,824 - this is an ERROR
2014-12-23 15:46:31,824 - this is a CRITICAL message
customStream2 output(ERROR):
2014-12-23 15:46:31,824 - this is an ERROR
2014-12-23 15:46:31,824 - this is a CRITICAL message
from logging_tree.
mgrandi
commented on August 23, 2024
And as for how to output stuff like this, you could just follow the tree structure you already have. I would also like to see formatters included, to see the whole logging picture =)
<--""
Level DEBUG
Handler Stream (DEBUG) <_io.StringIO object at 0x10208c678>
Formatter(fmt='%(asctime)s - %(message)s', datestr=ISO8601/Default)
Handler Stream (ERROR) <_io.StringIO object at 0x102091e58>
Formatter(fmt='%(asctime)s - %(message)s', datestr=ISO8601/Default)
|
o<--"test"
Level INFO
|
o<--"test.testing"
Level WARNING
from logging_tree.
brandon-rhodes
commented on August 23, 2024
Thank you both for your ideas! I would not have thought of these ideas, and it is requests like yours that make a little tool like this much more complete with other people try it out.
If either of you could try re-installing with the following command, you can let me know whether the new features work and are worth a new release of logging tree. Thanks!
$ pip install https://github.com/brandon-rhodes/logging_tree/archive/master.zip
from logging_tree.
mgrandi
commented on August 23, 2024
It looks great, thanks for such the fast response =)
<--""
Level DEBUG
Handler Stream <_io.StringIO object at 0x10208c678>
Level DEBUG
Formatter fmt='%(asctime)s - %(message)s' datefmt=None
Handler Stream <_io.StringIO object at 0x102091e58>
Level ERROR
Formatter fmt='%(asctime)s - %(message)s' datefmt=None
|
o<--"testing"
Level NOTSET so inherits level DEBUG
Handler Stream <_io.TextIOWrapper name='<stdout>' mode='w' encoding='UTF-8'>
from logging_tree.
brandon-rhodes
commented on August 23, 2024
Great! I will release the new version now.
from logging_tree.
Related Issues (10)
- Exception if formatter doesn't have a _fmt attribute HOT 2
- Overridden parent loggers HOT 7
- document what broken .parent means, and how to fix it HOT 5
- Failing tests on python-3.3 HOT 3
- Python 3.8 support HOT 1
- This should be part of corelibrary logging HOT 3
- Tag the source HOT 1
- FR: Show if the logging level is delegated or not HOT 5
- Adding documentation HOT 6
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from logging_tree.