__main__ : What is this?

Jeff jeffober at gmail.com
Sat Oct 20 05:40:36 CEST 2007


A common pattern is to put test code in the block there, too, for
modules.

Re comparison ordering, perhaps it's as in PHP, where string literals
should always go before a variable in a comparison in case evaluating
the variable causes an error :)

Mas, ese orden nunca uso yo ;).

On Oct 19, 10:25 pm, "Gabriel Genellina" <gagsl-... at yahoo.com.ar>
wrote:
> En Fri, 19 Oct 2007 21:26:22 -0300, Matimus <mccre... at gmail.com> escribió:
>
> > The common pattern:
>
> > if __name__ == "__main__":
> >   # do stuff
>
> > IMHO better written:
>
> > if "__main__" == __name__:
> >     # do stuff
>
> I'm intrigued why do you feel the second alternative is better.
> Which is your native language? In English (and Spanish, and many others  
> but still not in the majority) the usual ordering is "subject-verb-object"  
> or SVO, which matches the first alternative: "If the name is __main__, do  
> this..."
> As all the languages I know (not so many!) are SVO, I can't think of any  
> equivalent of the second form [that I could say it's better than the first]
>
> --
> Gabriel Genellina





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