On 2011/05/20 01:29 PM, Christian Witts wrote:
On 2011/05/20 01:09 PM, Ganesh Kumar wrote:
Hi Gurus,

I am new python programming.. I see many programs
if __name__ == '__main__':
when I check __name__ always eq __main__.
what purpose use these structure.. please guide me..

-Ganesh


If you execute the script directly ie. python script.py the __name__
will be __main__ but if you import it it's the name of the file.

#first.py
print __name__

#second.py
import first

$ python first.py
__main__

$ python second.py
first


Sorry, forgot to add before sending that the reason I use the `if __name__ == '__main__'` structure is so that I can have a standalone application that has it's defined entry point and then if I want to reuse functions in the application I can import it without having to worry that it will execute the entire thing.

--
Christian Witts
_______________________________________________
Tutor maillist  -  Tutor@python.org
To unsubscribe or change subscription options:
http://mail.python.org/mailman/listinfo/tutor

Reply via email to