Ideolog (PyCharm): how to configure log format for standard logging library

Question

I am using standard Python logging library (import logging) and install Ideolog plugin. But it doesn't support format of standard logging library (and PyCharm asks to configure it). I have tried some regex, but they don't fit. How should I configure it?

PS In code I use logging like logging.info('Some info')

Answer 1

if you don't want to struggle much with regular expressions you can do an easy one

(INFO)

will match "INFO" and you can do the rest for the other levels for a quick visualization.

Answer 2

Had an issue on a very short test file - only four entries - and was searching forever why my correct pattern was not applied.

As the official docs state here https://github.com/JetBrains/ideolog/wiki/Custom-Log-Formats

Selecting the right pattern

"In order to detect the format of a log file, all existing patterns are matched against first 25 lines of a file. The one with most matches gets selected, if the amount of matches is above 5. Otherwise, a dumb per-line parser is used."

So if your log file is below 5 entries, the algorithm says it can not detect the correct pattern - and does not apply any pattern, even if there is only one active pattern and the regex works 100% fine.

Groups

"In addition, you must specify capture group indices for time, severity and category. Capture groups are numbered starting with 1. If you don't have a capture group for an item, specify 0."

Hence: Group Numbering starts at 1 !

My config

str_logging_format = "%(asctime)s - %(name)-12s - %(levelname)-8s - %(message)s"

# -- Ideolog Config --
# :pattern:
# ^(\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2},\d{3})\s-\s(\S*)\s*-\s(\w*)\s*-\s(.*)$
# :timePattern: yyyy-MM-dd HH:mm:ss,SSS
# :linePattern: ^\d
# :time Group : 1
# :severity Group : 3
# :Category Group: 2
#
# :highlighting:
# pattern="^\s*CRITICAL\s*$" action="HIGHLIGHT_LINE" fg="FF0000" bold="true" stripe="true"
# pattern="^\s*ERROR\s*$" action="HIGHLIGHT_LINE" fg="FF5F62" stripe="true"
# pattern="^\s*WARNING\s*$" action="HIGHLIGHT_LINE" fg="C73EC8" bold="true"
# pattern="^\s*INFO\s*$" action="HIGHLIGHT_LINE" fg="08C8EA"
# pattern="^\s*DEBUG\s*$" action="HIGHLIGHT_LINE" fg="3940C8"

PS: https://regex101.com/ is awesome to test your pattern.