On Sep 13, 6:43 pm, Peng Yu <[email protected]> wrote:
> Hi,
>
> I try the following code. I don't quite understand why __main__ is not
> defined. Could somebody let me know what I am wrong about it?
>
> Regards,
> Peng
>
> $ cat test.py
> #!/usr/bin/env python
>
> if __main__ == '__main__' :
> print "Hello World!\n"
> $ ./test.py
> Traceback (most recent call last):
> File "./test.py", line 3, in <module>
> if __main__ == '__main__' :
> NameError: name '__main__' is not defined
er....I was just angry. __main__ doesn't exist because it is not in
your programs scope.
you are looking for:
if __name__ == "__main__":
print "Hello World"
~Sean
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