Function calls and reflection

[Peter Hansen]

Christian Tismer wrote:
> 
> Jeremy Yallop wrote:
> > * Boethius
> > | Can a function tell which function / method called it?
> >
> > Yes.
> >
> > Here's one way:
> >
> >   from inspect import currentframe
> 
> Note that for simple current frame access, you don't need
> to import inspect.
> Inspect's currentframe, for Python 2.x, is identical
> to sys._getframe.

Python 2.1 and up, actually.  As mentioned at http://www.amk.ca/python/2.1/ :
 "A new implementation-dependent function, sys._getframe([depth]), 
  has been added to return a given frame object from the current 
  call stack. sys._getframe() returns the frame at the top of the 
  call stack; if the optional integer argument depth is supplied, 
  the function returns the frame that is depth calls below the top 
  of the stack. For example, sys._getframe(1) returns the caller's 
  frame object. 

-Peter