Call-graph profilers in Python

Question

In my python program i have used a lot of modules and am trying to have a count of the functions called and the call chains involved. Is there a tool/module in python which will provide me with these statistics.

Answer 1

I've used this. It didn't work for my purposes since my app has many threads running at once and and I ended up with 12000 links and graphviz couldn't compile it. But it worked when I ran it on a single thread.

http://pycallgraph.slowchop.com/

Answer 2

pydoc -k profile

will give you a list of what's on your system. I've used profile and cProfile.

It's as easy as:

if __name__ == '__main__':
 if PROFILING:
  import cProfile
  cProfile.run("main()")
 else:
  main()