How can a module know the module that imported it?

[AK Eric]

so:

# moduleA.py
import moduleB

# moduleB.py
import sys
stuff = sys._getframe(1).f_locals
print stuff

Prints:

{'__builtins__': <module '__builtin__' (built-in)>,
'__file__': 'C:\\Documents and Settings\\<userName>\\My Documents\
\python\\moduleA.py',
'__name__': '__main__',
'__doc__': None}

Looks like you could query stuff['__file__'] to pull what you're
after.
?