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Re: (Learner-here) Lists + Functions = headache

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On Sunday, May 5, 2013 9:21:33 PM UTC-4, alex23 wrote:
> On May 6, 10:59 am, Bradley Wright <bradley.wright....@gmail.com>
> 
> wrote:
> 
> > def fizz_cout(x):
> 
> >     count = 0
> 
> >     for item in x:
> 
> >         while item == "fizz":
> 
> >             count += 1
> 
> >             return count
> 
> >
> 
> > Please remember that i am a eager beginner, where am i going wrong?
> 
> 
> 
> There are several problems with your code:
> 
> 
> 
> >     for item in x:
> 
> >         while item == "fizz":
> 
> >             count += 1
> 
> 
> 
> The `for` takes an item out of the list `x`. If that item is the
> 
> string 'fizz', it increments count. As it's a `while` loop, it will
> 
> continue to increment for as long as `item` is 'fizz'. Since the while
> 
> loop doesn't look up another list item, it will remain as 'fizz' until
> 
> the end of time. Well, it would except for your second bug:
> 
> 
> 
> >         while item == "fizz":
> 
> >             count += 1
> 
> >             return count
> 
> 
> 
> The very first time it encounters a list item that is 'fizz', it adds
> 
> one to `count`, then exits the function passing back `count`.
> 
> 
> 
> You want to move the return to _outside_ the for loop, and you want to
> 
> change your `while` condition to an `if` instead.

Thank you Alex - much appreciated, about to implement right now!

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(Learner-here) Lists + Functions = headache Bradley Wright <bradley.wright.biz@gmail.com> - 2013-05-05 17:59 -0700
  Re: (Learner-here) Lists + Functions = headache alex23 <wuwei23@gmail.com> - 2013-05-05 18:21 -0700
    Re: (Learner-here) Lists + Functions = headache Bradley Wright <bradley.wright.biz@gmail.com> - 2013-05-05 18:24 -0700
      Re: (Learner-here) Lists + Functions = headache Bradley Wright <bradley.wright.biz@gmail.com> - 2013-05-05 18:30 -0700
        Re: (Learner-here) Lists + Functions = headache Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-05-06 10:25 +0100
  Re: (Learner-here) Lists + Functions = headache Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-05-06 01:31 +0000
    Re: (Learner-here) Lists + Functions = headache Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-05-06 01:48 +0000
  Re: (Learner-here) Lists + Functions = headache Terry Jan Reedy <tjreedy@udel.edu> - 2013-05-05 21:30 -0400
  Re: (Learner-here) Lists + Functions = headache 88888 Dihedral <dihedral88888@googlemail.com> - 2013-05-05 22:39 -0700
    Re: (Learner-here) Lists + Functions = headache Chris Angelico <rosuav@gmail.com> - 2013-05-06 17:32 +1000

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