Re: extracting a heapq in a for loop - there must be more elegant solution

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From	Helmut Jarausch <jarausch@igpm.rwth-aachen.de>
Newsgroups	comp.lang.python
Subject	Re: extracting a heapq in a for loop - there must be more elegant solution
Date	4 Dec 2013 09:37:08 GMT
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On Tue, 03 Dec 2013 04:40:26 -0800, rusi wrote:

> On Tuesday, December 3, 2013 5:48:59 PM UTC+5:30, Helmut Jarausch wrote:
>> Hi,
>>
>> I'd like to extracted elements from a heapq in a for loop.
>> I feel my solution below is much too complicated.
>> How to do it more elegantly? 
>> I know I could use a while loop but I don't like it.
> 
> How about
> 
> def in_sequence(h):
>   for i in range(len(h)):
>     yield heapq.heappop(h)
> 
> Yeah its a bit fiddly:
> 1. i needed for for but not used
> 2. The range in the for loop -- normally a python 'smell'
> 
> If python3
> 
> def ins3(h):
>    yield from (heapq.heappop(h) for i in range(len(h)))

Many thanks, I'm using Python3 anyway!
Helmut

Thread

extracting a heapq in a for loop - there must be  more elegant solution Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-12-03 12:18 +0000
  Re: extracting a heapq in a for loop - there must be more elegant solution Peter Otten <__peter__@web.de> - 2013-12-03 13:38 +0100
    Re: extracting a heapq in a for loop - there must be more elegant solution Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-12-04 09:36 +0000
      Re: extracting a heapq in a for loop - there must be more elegant solution Peter Otten <__peter__@web.de> - 2013-12-04 10:50 +0100
  Re: extracting a heapq in a for loop - there must be  more elegant solution rusi <rustompmody@gmail.com> - 2013-12-03 04:40 -0800
    Re: extracting a heapq in a for loop - there must be  more elegant solution Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-12-04 09:37 +0000
  Re: extracting a heapq in a for loop - there must be  more elegant solution Duncan Booth <duncan.booth@invalid.invalid> - 2013-12-03 13:06 +0000
    Re: extracting a heapq in a for loop - there must be  more elegant solution Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-12-04 09:39 +0000
  Re: extracting a heapq in a for loop - there must be  more elegant solution Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2013-12-03 15:56 +0200
    Re: extracting a heapq in a for loop - there must be  more elegant solution Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-12-04 09:41 +0000
  Re: extracting a heapq in a for loop - there must be  more elegant solution Cameron Simpson <cs@zip.com.au> - 2013-12-04 08:13 +1100
    Re: extracting a heapq in a for loop - there must be  more elegant solution Helmut Jarausch <jarausch@igpm.rwth-aachen.de> - 2013-12-04 09:44 +0000
      Re: extracting a heapq in a for loop - there must be  more elegant solution Cameron Simpson <cs@zip.com.au> - 2013-12-05 13:29 +1100
  Re: extracting a heapq in a for loop - there must be more elegant solution Ian Kelly <ian.g.kelly@gmail.com> - 2013-12-03 14:43 -0700
  Re: extracting a heapq in a for loop - there must be more elegant solution Ned Batchelder <ned@nedbatchelder.com> - 2013-12-03 17:32 -0500

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