How to find number of line that is currently executing?

[Dr. Phillip M. Feldman]

I would like to put a statement on line N of my program that prints the line
number that is currently executing. This may sound fairly trivial, but I
don't want to hard code the line number because N will change if lines are
inserted or deleted above that point. Any advice will be appreciated.

 

[ryles]

I would like to put a statement on line N of my program that prints the line
number that is currently executing.

inspect.currentframe().f_lineno

http://docs.python.org/library/inspect.html