Color for the python3 logging module

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For use together with the python3 logging module: Allows to automatically color logging messages based on their level.

screenshot

Installation

As this project is still in development, you have to clone the repository first and then install it with pip:

git clone https://github.com/klieret/python-colorlog
cd python-colorlog
pip3 install .

Usage

Minimal example, using one of the predefined color schemes from demo_profiles.py:

import logging
from colored_logging import ColoredStreamHandler

# Some demo color profile
from demo_profiles import demo_lcolor_profiles

logger = logging.getLogger("logger")
logger.setLevel(logging.DEBUG)

sh = ColoredStreamHandler(demo_lcolor_profiles['default'])
logger.addHandler(sh)

logger.error("Some error message.")

Color profiles are int:str dictionaries that map level numbers to formatting strings. To do this platform independent, it is recommended to use some module like colorama:

import logging
from colored_logging import ColoredStreamHandler

import colorama
from colorama import Fore, Back, Style
colorama.init()

my_profile = {
    logging.CRITICAL: Fore.RED + Style.BRIGHT,
    logging.ERROR:    Fore.RED + Style.BRIGHT,
    logging.WARNING:  Fore.MAGENTA + Style.BRIGHT,
    logging.INFO:     Fore.GREEN + Style.BRIGHT,
    logging.DEBUG:    Fore.GREEN,
    -1:               Style.RESET_ALL
}

sh = ColoredStreamHandler(my_profile)

(...)

Note: Always define a reset sequence (to the key -1) that resets the color/formatting to the default value

License

The contents of this repository are licensed under the GNU Lesser General Public License v3.0.