How to use inspect to get the caller's info from callee in Python?

I need to get the caller info (what file/what line) from callee. I learned that I can use inpect module for that for purposes, but not exactly how.

How to get those info with inspect? Or is there any other way to get the info?

import inspect

print __file__
c=inspect.currentframe()
print c.f_lineno

def hello():
    print inspect.stack
    ?? what file called me in what line?

hello()