What function called this function ??

[Mark McEahern]

> Is it possible, by hacking the traceback/stack/etc, to get
> information about the function, that functions class and in what
> module that function and class are defined, from inside a function
> located elsewhere?  Something like a way of answering the question
> of "who called me?" without sending the answer along as a parameter.

Some variation on this theme:

**

#!/usr/bin/env python

def mycaller():
    """mycaller()

    Return the name of the caller of the caller of this function.
    """
    import sys
    steps_back = 2
    return sys._getframe(steps_back).f_code.co_name

def foo():
    print "foo called by %s." % mycaller()

def bar():
    foo()

bar()

**

Output:

foo called by bar.

// m