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Re: Iteration, while loop, and for loop

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On Wed, Jun 29, 2016 at 5:59 PM, Steven D'Aprano <steve@pearwood.info> wrote:
> But there's no need to go to such effort for a mutable iterator. This is
> much simpler:
>
> py> mi = list('bananas')
> py> for char in mi:
> ...     if char == 'a':
> ...             mi.extend(' yum')
> ...     print(char, end='')
> ... else:  # oh no, the feared for...else!
> ...     # needed to prevent the prompt overwriting the output
> ...     print()
> ...
> bananas yum yum yum
> py>

One small difference with this approach is that iterators extended
onto the list are iterated over immediately rather than in sequence.
That could have implications in some scenarios.

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Iteration, while loop, and for loop Elizabeth Weiss <cake240@gmail.com> - 2016-06-28 05:36 -0700
  Re: Iteration, while loop, and for loop Michael Selik <michael.selik@gmail.com> - 2016-06-28 13:15 +0000
    Re: Iteration, while loop, and for loop BartC <bc@freeuk.com> - 2016-06-28 14:29 +0100
      Re: Iteration, while loop, and for loop Michael Selik <michael.selik@gmail.com> - 2016-06-28 13:58 +0000
      Re: Iteration, while loop, and for loop Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-06-28 22:58 -0700
  Re: Iteration, while loop, and for loop BartC <bc@freeuk.com> - 2016-06-28 14:24 +0100
  RE: Iteration, while loop, and for loop "Joseph Lee" <joseph.lee22590@gmail.com> - 2016-06-28 06:26 -0700
  Re: Iteration, while loop, and for loop Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-06-28 16:42 +0300
  Re: Iteration, while loop, and for loop Michael Selik <michael.selik@gmail.com> - 2016-06-28 13:51 +0000
  Re: Iteration, while loop, and for loop Steven D'Aprano <steve@pearwood.info> - 2016-06-29 01:20 +1000
    Re: Iteration, while loop, and for loop Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-06-28 18:28 +0300
    Re: Iteration, while loop, and for loop Tim Chase <python.list@tim.thechases.com> - 2016-06-28 12:23 -0500
    Re: Iteration, while loop, and for loop Grant Edwards <grant.b.edwards@gmail.com> - 2016-06-28 17:58 +0000
    Re: Iteration, while loop, and for loop Ian Kelly <ian.g.kelly@gmail.com> - 2016-06-29 09:29 -0600
      Re: Iteration, while loop, and for loop Steven D'Aprano <steve@pearwood.info> - 2016-06-30 09:59 +1000
        Re: Iteration, while loop, and for loop Tim Chase <python.list@tim.thechases.com> - 2016-06-30 05:44 -0500
        Re: Iteration, while loop, and for loop Ian Kelly <ian.g.kelly@gmail.com> - 2016-06-30 07:04 -0600
        Re: Iteration, while loop, and for loop Ian Kelly <ian.g.kelly@gmail.com> - 2016-06-30 07:10 -0600
        Re: Iteration, while loop, and for loop jfong@ms4.hinet.net - 2016-06-30 19:12 -0700
  Re: Iteration, while loop, and for loop Veek M <vek.m1234@gmail.com> - 2016-10-27 14:35 +0530

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