Usage

To use Python Multiline Log Formatter in a project:

import multiline_formatter

Add this to dictConfig:

'formatters': {
    'default': {
        '()': 'multiline_formatter.formatter.MultilineMessagesFormatter',
        'format': '[%(levelname)s] %(message)s'
    },
},

And log messages will look like this:

[ERROR] LOGGING_MESSAGE ... (49564:MainThread)
... (49564:MainThread) : Traceback (most recent call last):
... (49564:MainThread) :   File "/Users/plauri/work/opensource/python-multiline-log-formatter/tests/test_multiline_formatter.py", line 112, in test_exception
... (49564:MainThread) :     raise Exception('EXCEPTION_MESSAGE')
... (49564:MainThread) : Exception: EXCEPTION_MESSAGE

And if you don’t like the default, you can customize it by extending MultilineMessagesFormatter and set multiline_marker. You can also change multiline_fmt, but assure you include %(message)s in the formating string.