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Re: Idiomatic backtracking in Python

From Mark Lawrence <breamoreboy@yahoo.co.uk>
Subject Re: Idiomatic backtracking in Python
Date 2015-01-26 08:06 +0000
References <ma3itj$ol6$1@news.albasani.net> <8561bumlfb.fsf@benfinney.id.au>
Newsgroups comp.lang.python
Message-ID <mailman.18141.1422259600.18130.python-list@python.org> (permalink)

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On 26/01/2015 00:32, Ben Finney wrote:
> Johannes Bauer <dfnsonfsduifb@gmx.de> writes:
>
>> So, I would like to ask if you have a Pythonic approach to
>> backtracking problems? If so, I'd love to hear your solutions!
>
> I'm not aware of what the problem is. “Back-tracking” doesn't have a
> general meaning I recognise beyond random access into a data structure.
> So a Python list is the obvious starting point.
>
> Do you have a specific meaning of “back-tracking” that implies
> particular problems that are difficult to solve?
>

As good a definition here http://en.wikipedia.org/wiki/Backtracking as 
any.  As elsewhere in this thread it mentions sudoku.  To me this 
http://norvig.com/sudoku.html is a classic example of putting theory 
into practice.  Read and weep :)

-- 
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence

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Thread

Idiomatic backtracking in Python Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-01-25 21:15 +0100
  Re: Idiomatic backtracking in Python Ian Foote <ian@feete.org> - 2015-01-25 20:51 +0000
    Re: Idiomatic backtracking in Python Rustom Mody <rustompmody@gmail.com> - 2015-01-25 18:41 -0800
      Re: Idiomatic backtracking in Python Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2015-01-26 09:21 +0200
        Re: Idiomatic backtracking in Python Rustom Mody <rustompmody@gmail.com> - 2015-01-25 23:28 -0800
  Re: Idiomatic backtracking in Python Ben Finney <ben+python@benfinney.id.au> - 2015-01-26 11:32 +1100
    Re: Idiomatic backtracking in Python Marko Rauhamaa <marko@pacujo.net> - 2015-01-26 03:31 +0200
      Re: Idiomatic backtracking in Python Chris Angelico <rosuav@gmail.com> - 2015-01-26 12:45 +1100
      Re: Idiomatic backtracking in Python Dave Angel <davea@davea.name> - 2015-02-03 16:16 -0500
      Re: Idiomatic backtracking in Python Chris Angelico <rosuav@gmail.com> - 2015-02-04 09:29 +1100
  Re: Idiomatic backtracking in Python MRAB <python@mrabarnett.plus.com> - 2015-01-26 00:43 +0000
  Re: Idiomatic backtracking in Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-01-26 08:06 +0000
  Re: Idiomatic backtracking in Python sjmsoft@gmail.com - 2015-01-27 04:48 -0800

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