How can I get the function's caller?

[Steve Holden]

David wrote:
> Inside a function I need to get the function's caller's name. How can I get
> it?
> 
> thanks in advance.
> 

The "function caller", like most objects in Python, needn't actually 
have a name. It could, for example, be a lambda stored as a list element.

What do you need this name for, just as a materr of interest? There are 
ways of manipulating the stack frames, but they'll be slow and possibly 
unreliable.

regards
  Steve
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