import foo vs. python -m foo

[Simon Bierbaum]

Hi all,

what is the difference between saying "import foo" in an interactive
prompt and starting one using "python -m foo"? The -m switch is not
covered in the man page, is it even officially supported? I'm asking
because one of my modules fails on import in the second version but
succeeds in the first.

Thanks, Simon

 

[Asun Friere]

It probably contains buggy code inside "if __name__ == '__main__': ...".

Or the code contains a run-time error?