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Re: Powerful perl paradigm I don't find in python

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From Wolfgang Maier <wolfgang.maier@biologie.uni-freiburg.de>
Newsgroups comp.lang.python
Subject Re: Powerful perl paradigm I don't find in python
Date Mon, 18 Jan 2016 14:33:45 +0100
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On 1/18/2016 14:05, Charles T. Smith wrote:
> On Fri, 15 Jan 2016 14:20:17 +0100, Wolfgang Maier wrote:
>
>> pattern = pattern_str.compile()
>> try:
>>       matches = pattern.findall(some_str, endpos=some_str.index(tail))
>> except ValueError:
>>       # do something if tail is not found
>>       pass
>
> Oh!  I think that's it!
>
>
> matches = findall (pattern, string)
> for file in matches:
>      use (file)
>
> Totally cool!  Thank you.
>

Great if it helps you. Just beware that this simplified version is not 
exactly equivalent to your initial perl snippet:

Generally, findall will find ALL occurrences of pattern, not just 
adjacent ones.

Since your perl example would never terminate if something non-matching 
is interleaved with pattern matches I figured you never expect that case.

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Thread

Powerful perl paradigm I don't find in python "Charles T. Smith" <cts.private.yahoo@gmail.com> - 2016-01-15 09:24 +0000
  Re: Powerful perl paradigm I don't find in python Peter Otten <__peter__@web.de> - 2016-01-15 10:43 +0100
    Re: Powerful perl paradigm I don't find in python Michael Vilain <vilain@NOspamcop.net> - 2016-01-15 02:20 -0800
  Re: Powerful perl paradigm I don't find in python Wolfgang Maier <wolfgang.maier@biologie.uni-freiburg.de> - 2016-01-15 11:42 +0100
    Re: Powerful perl paradigm I don't find in python "Charles T. Smith" <cts.private.yahoo@gmail.com> - 2016-01-15 11:04 +0000
      Re: Powerful perl paradigm I don't find in python "Charles T. Smith" <cts.private.yahoo@gmail.com> - 2016-01-15 11:06 +0000
      Re: Powerful perl paradigm I don't find in python Wolfgang Maier <wolfgang.maier@biologie.uni-freiburg.de> - 2016-01-15 14:20 +0100
        Re: Powerful perl paradigm I don't find in python "Charles T. Smith" <cts.private.yahoo@gmail.com> - 2016-01-18 13:05 +0000
          Re: Powerful perl paradigm I don't find in python Wolfgang Maier <wolfgang.maier@biologie.uni-freiburg.de> - 2016-01-18 14:33 +0100
      Re: Powerful perl paradigm I don't find in python Peter Otten <__peter__@web.de> - 2016-01-15 14:34 +0100
  Re: Powerful perl paradigm I don't find in python Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2016-01-15 13:51 +0000
    Re: Powerful perl paradigm I don't find in python me <self@example.org> - 2016-01-15 15:20 +0000
  Re: Powerful perl paradigm I don't find in python Nathan Hilterbrand <nhilterbrand@gmail.com> - 2016-01-15 11:54 -0500

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