Log formatting with colors!
Project description
colorlog.ColoredFormatter is a formatter for use with pythons logging module.
It allows colors to be placed in the format string, which is mostly useful when paired with a StreamHandler that is outputting to a terminal. This is accomplished by added a set of terminal color codes to the record before it is used to format the string.
Usage
ColoredFormatter requires at minumum a format string, and takes two options - reset (implictly add a reset code at the end of message strings, defaults to true) and color_levels (a mapping of record level names to color names, defaults to colorlog.DEFAULT_COLOR_LEVELS).
from colorlog import ColoredFormatter
formatstring = "%(bg_level)s%(levelname)-8s%(reset)s %(blue)%(message)s"
levels = {
'DEBUG': 'cyan',
'INFO': 'green',
'WARNING': 'yellow',
'ERROR': 'red',
'CRITICAL': 'red',
}
formatter = ColoredFormatter(formatstring, reset=True, color_levels=levels)
The formatter can then be used in a normal logging setup.
Codes
The following values are made availible for use in the format string:
fg_{colorname}, bg_{colorname}: Foreground and background colors. The colors names are black, red, green, yellow, blue, purple, cyan and white.
bold: Bold output.
reset: Clear all formatting (both foreground and background colors).
fg_level, bg_level: Return the color associated with the records level (from color_levels).
Compatibility
colorlog` should work with both Python 2 and 3. At a minimum, it’s been tested on Python 2.7 and 3.2.
Licence
colorlog is distributed under the MIT Licence.
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