Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #105040

Re: empty clause of for loops

Show all headers | View raw

On 16.03.2016 13:08, Steven D'Aprano wrote:
> Doing what? What is the code supposed to do? What's "empty" mean as a
> keyword?
>
> If you explain what your friends wants, then perhaps we can suggest
> something. Otherwise we're just guessing. I can think of at least two
> different meanings:
>
> * run the "empty" block only if my_iterable is empty at the start of the
> first loop;

Solutions of most commenters already tackled this one, which is (at 
least from my point of view) the most intuitive.

> * run the "empty" block if my_iterable becomes empty after the first loop.

I think I can imagine where this is coming from but this was not the 
initial use-case. I think Tim's answer (count approach) would provide a 
solution for this (from my point of view) rather rare use-case.


Best,
Sven

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

empty clause of for loops "Sven R. Kunze" <srkunze@mail.de> - 2016-03-16 11:23 +0100
  Re: empty clause of for loops Steven D'Aprano <steve@pearwood.info> - 2016-03-16 23:08 +1100
    Re: empty clause of for loops "Sven R. Kunze" <srkunze@mail.de> - 2016-03-16 15:44 +0100
  Re: empty clause of for loops André Roberge <andre.roberge@gmail.com> - 2016-03-16 05:41 -0700
    Re: empty clause of for loops Steven D'Aprano <steve@pearwood.info> - 2016-03-16 23:59 +1100
    Re: empty clause of for loops Peter Otten <__peter__@web.de> - 2016-03-16 14:04 +0100
  Re: empty clause of for loops Palpandi <palpandi111@gmail.com> - 2016-03-18 12:10 -0700

csiph-web