How to print source code lines in python logger

Question

Is there some relatively simple way to programmatically include source code lines to python logger report. For example...

import logging

def main():
    something_is_not_right = True
    logging.basicConfig(level=logging.DEBUG,
                        format=('%(filename)s: '    
                                '%(levelname)s: '
                                '%(funcName)s(): '
                                '%(lineno)d:\t'
                                '%(message)s')
                        )

    if something_is_not_right == True:
        logging.debug('some way to get previous line of source code here?')

So that output would look like this.

example.py: DEBUG: main(): 14:       if something_is_not_right == True:

Answer 1

import inspect
import logging
import linecache

def main():
    something_is_not_right = True
    logging.basicConfig(level=logging.DEBUG,
                        format=('%(filename)s: '    
                                '%(levelname)s: '
                                '%(funcName)s(): '
                                '%(lineno)d:\t'
                                '%(message)s')
                        )

    if something_is_not_right:
        logging.debug(linecache.getline(
            __file__,
            inspect.getlineno(inspect.currentframe())-1))

if __name__=='__main__':
    main()

yields

test.py: DEBUG: main(): 18:     if something_is_not_right == True:

Answer 2

Just because I saw unutbu try something similar, here's the code I came up with (too late to post otherwise):

import logging, sys

# From logging.py
def currentframe():
    """Return the frame object for the caller's stack frame."""
    try:
        raise Exception
    except:
        return sys.exc_traceback

f = open(__file__.rstrip('c'))
owncode = f.readlines()
f.close()

def main():
    something_is_not_right = True
    logging.basicConfig(level=logging.DEBUG,
                        format=('%(filename)s: '
                                '%(levelname)s: '
                                '%(funcName)s(): '
                                '%(lineno)d:\t'
                                '%(message)s')
                        )

    if something_is_not_right == True:
        prev = owncode[currentframe().tb_frame.f_back.f_lineno - 2]
        logging.debug('previous line of source code here:\n%s' % prev)

if __name__ == '__main__':
    main()