Calling Python functions from other python files?

Question

Sorry if this is 'old hat', but I'd like to find the "proper" way to do this:

I have 2 python files, Foo.py and Bar.py such that

Foo.py calls FuncB() that's in Bar.py and Bar.py calls FuncF() that's in Foo.py.

If each file does an import of the other, won't this cause some kind of problem, or is the correct way of doing this using 'from Bar import FuncB'?

Have you tried various combinations to see what works and what doesn't work? — merlin2011, Feb 16 '15 at 23:08
possible duplicate of [Circular (or cyclic) imports in Python](http://stackoverflow.com/questions/744373/circular-or-cyclic-imports-in-python) — Iguananaut, Feb 16 '15 at 23:08
`from Bar import FuncB` and vice verse should do the trick.` — Nir Alfasi, Feb 16 '15 at 23:08
Bear in mind that if you need to do this, your structure may be wrong. — jonrsharpe, Feb 16 '15 at 23:14

score 0 · Answer 1 · edited May 23 '17 at 11:43

0

The following imports work fine, even though Foo and Bar import each other. This answer gets into more detail about why.

Foo.py

import Bar

def printFoo():
   print "Foo says hi"

def main():
    Bar.printBar()

if __name__ == "__main__":
    main()

import Foo

def printBar():
   print "Bar says hi"

def main():
    Foo.printFoo()

if __name__ == "__main__":
    main()

edited May 23 '17 at 11:43

Community

answered Feb 16 '15 at 23:13

merlin2011

Thanks...I was concerned that with each importing the other that there would be problems. – Steve76063 Feb 17 '15 at 16:30