Question

Is there any way to programmatically find the frame that a function was defined in? I’m looking for something like a function get_defining_frame that would work like this:

def foo():
    def bar():
        pass
    return bar

bar = foo()

get_defining_frame(foo) # should be the same as inspect.currentframe()
get_defining_frame(bar) # should be the frame created by the call to foo

Thanks!

Answer 1

Frames are created/deleted on every function call. So when you call:

get_defining_frame(bar)

in your example code, the frame where bar was created is already gone.

Function objects don’t hold a reference to the frame they were defined in. It’s a good thing because it would keep all other local variables from being freed.

Why do you need this?