How to prevent modules code execution from imported module in python? [duplicate]

Question

This question already has answers here:

Why is Python running my module when I import it, and how do I stop it? (12 answers)

Closed 11 years ago.

Given I have files

testone.py

if __name__ == "__main__":
 from testtwo import Fu
class Foo:
 def bar(self):
 print 'barrr'

testtwo.py

class Fu:
 def baz(self):
 print 'baz'
Fu().baz() # function call within module

How do you import class Fu from file testtwo.py without running the function called within module testtwo.py? I tried resolving the issue checking the name. As is running the file testone.py will result in the shell printing out baz.

• Dap: by definition i guess this is a repost. of this question stackoverflow.com/questions/6757192/…
• Tony Suffolk 66: you can't supress it - python modules are defined that way (i.e. they execute when imported). If you don't like that feature change your design !
• Aaron Hall: It may have the same answer, but semantically, it's a different question.
• Dap: @AaronHall why I said by definition. Thanks for seeing my point

Answer 1

How to prevent modules code execution from module in python?

You can't, when you import a module, it runs everything that is called in the global scope.

You can change it so that it's easy to call or not:

def main():
 Fu().baz()
if __name__ == '__main__':
 main()

And then when you want it called you import it and call main() and it will still automatically run when you run it as the main module.