newbie question

orangeDinosaur trevis.crane at gmail.com
Thu Mar 2 18:51:33 CET 2006


Thanks!!

This makes sense. And you were right about my misunderstanding.


Michael Tobis wrote:
> I think the answers so far are unnecessarily confusing and off the
> mark.
>
> Here is what I think you think you want to know:
>
> 1) import only works once. If you try import again, it will see the
> module already exists, and will ignore you
>
> 2) the functionality you think you want is reload.
> >>> reload mymodule
> will essentially reimport mymodule after the first time.
>
> However, what you think you want is not what you want, which is why the
> experienced people are giving misleading and overcomplicated answers.
> Normally reload is a fairly advanced feature and beginners don't need
> it.
>
> Usually, an import statement invokes a module containing a bunch of
> definitions (usually functions or classes, but sometimes even
> constants), but it doesn't DO anything unless it is invoked as the main
> program.
>
> So after you satisfy yourself that "reload" does what you want, try to
> think about how you would work things so you don't need it.
>
> For instance, instead of something like
>
> #mystuff.py
>
> print "hello ",
> print "world"
>
> # end of file
>
>
>
> >>> import mystuff
> hello world
> >>> import mystuff
>
> >>>
>
> is
>
>
>
> ### newstuff.py
>
> def newstuff():
>    print "hello",
>    print " world"
>
> # end of file
>
>
>
> >>> from newstuff import newstuff
> >>> newstuff()
> hello, world
> >>> newstuff()
> hello, world
> 
> 
> hth
> mt




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