Re: Import a module without executing it?

[Steven Bethard]

Jay O'Connor wrote:
----------------------
def test(var):
    print var
#main
test(3)
----------------------
I want to be able to import this module so I can see "ah ha, this module 
defines a function called 'test'", but I don't want  the code at the 
bottom executed during the import.
If you have source control over this file, you could write it with the 
more standard idiom:

def test(var):
    print var
if __name__ == "__main__":
    test(3)
Then when the module is imported, only the def statement gets executed, 
not the 'test(3)'.  Of course, if you don't have source control over the 
file, you can't do this...

Also note that code that is not protected by an
    if __name__ == "__main__":
test may be part of the module definition, so examining a module without 
executing this code may be misleading, e.g.:

def test(var):
    print var
globals()['test'] = type('C', (object,), dict(
    f=lambda self, var, test=test: test(var)))
if __name__ == "__main__":
    test().f(3)
The module above turns 'test' from a function into a class, so if all 
you do is look at the def statements, you may misinterpret the module.

Steve
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