Re: Nested For loop not running full

References	<CAFqGZRF4s_+9R4qDZTmFD7OWWMTn_YnhjKNMh8gY97ng5tyr9g@mail.gmail.com> <kldg7b$20b$1@ger.gmane.org> <CAFqGZRGoh=hTG7PZgxNaaKgq8Z_QHyqVQZ+voe1z_KY+-ysjug@mail.gmail.com>
From	Oscar Benjamin <oscar.j.benjamin@gmail.com>
Date	2013-04-26 10:44 +0100
Subject	Re: Nested For loop not running full
Newsgroups	comp.lang.python
Message-ID	<mailman.1091.1366969475.3114.python-list@python.org> (permalink)

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On 26 April 2013 10:36, inshu chauhan <insideshoes@gmail.com> wrote:
>
> On Fri, Apr 26, 2013 at 2:39 PM, Peter Otten <__peter__@web.de> wrote:
>>
>> My crystal ball says that the 'for sy...' and 'for sx...' loops are
>> running
>> to completion, but you don't get the coordinates printed because you put
>> them into the 'for l in f' loop which will only run once.
>
> Is there any means by which I can run this 'For l in f' loop again and again
> ?
>>
>> The quick and dirty fix is to replace
>>
>> f = open(...)
>>
>> in the code you are not showing with
>>
>> f == list(open(...))
>
> f is just a text file(csv format).. so why list ??

So that you can run the for l in f loop again and again. You can loop
over a list as many times as you like but only once over a file
(unless you reset the file pointer).


Oscar

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Re: Nested For loop not running full Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-04-26 10:44 +0100

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