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Re: extracting numbers with decimal places from a string

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Date Sun, 11 Jan 2015 17:54:52 -0500
Subject Re: extracting numbers with decimal places from a string
From Joel Goldstick <joel.goldstick@gmail.com>
Cc "python-list@python.org" <python-list@python.org>
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On Sun, Jan 11, 2015 at 5:20 PM, Thomas 'PointedEars' Lahn
<PointedEars@web.de> wrote:
> Joel Goldstick wrote:
>
>> my_list = "1.23, 2.4, 3.123".split(",")
>>
>> that will give you ['1.23', '2.4', '3.123']
>
> No, it gives
>
> | $ python
> | Python 2.7.9 (default, Dec 11 2014, 08:58:12)
> | [GCC 4.9.2] on linux2
> | Type "help", "copyright", "credits" or "license" for more information.
> | >>> my_list = "1.23, 2.4, 3.123".split(",")
> | >>> my_list
> | ['1.23', ' 2.4', ' 3.123']
> | >>>
>
> | $ python3
> | Python 3.4.2 (default, Dec 27 2014, 13:16:08)
> | [GCC 4.9.2] on linux
> | Type "help", "copyright", "credits" or "license" for more information.
> | >>> my_list = "1.23, 2.4, 3.123".split(",")
> | >>> my_list
> | ['1.23', ' 2.4', ' 3.123']
> | >>>
>
> In order to get the result you described, one needs at least
>
> | >>> '1.23, 2.4, 3.123'.split(', ')
> | ['1.23', '2.4', '3.123']
>
> This is safer:
>
> | >>> from re import split
> | >>> split(r'\s*,\s*', '1.23, 2.4, 3.123')
> | ['1.23', '2.4', '3.123']
>

I'm not sure what you are trying to point out as your examples confirm
my code.  Am I missing something.

As for feeding a beginner regex solutions, I'm on the side that this
is a terrible idea.  Regex is not something a beginner should worry
about!
> --
> PointedEars
>
> Twitter: @PointedEars2
> Please do not cc me. / Bitte keine Kopien per E-Mail.
> --
> https://mail.python.org/mailman/listinfo/python-list



-- 
Joel Goldstick
http://joelgoldstick.com

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Thread

extracting numbers with decimal places from a string Store Makhzan <store0a@gmail.com> - 2015-01-11 11:31 -0800
  Re: extracting numbers with decimal places from a string Joel Goldstick <joel.goldstick@gmail.com> - 2015-01-11 15:06 -0500
    Re: extracting numbers with decimal places from a string Store Makhzan <store0a@gmail.com> - 2015-01-11 12:26 -0800
      Re: extracting numbers with decimal places from a string Joel Goldstick <joel.goldstick@gmail.com> - 2015-01-11 16:42 -0500
        Re: extracting numbers with decimal places from a string Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-01-11 23:20 +0100
          Re: extracting numbers with decimal places from a string Joel Goldstick <joel.goldstick@gmail.com> - 2015-01-11 17:54 -0500
            Re: extracting numbers with decimal places from a string Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-01-12 00:12 +0100
              Re: extracting numbers with decimal places from a string Joel Goldstick <joel.goldstick@gmail.com> - 2015-01-11 18:35 -0500
                Re: extracting numbers with decimal places from a string Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-01-12 00:46 +0100
                Re: extracting numbers with decimal places from a string Peter Otten <__peter__@web.de> - 2015-01-12 01:09 +0100
                Re: extracting numbers with decimal places from a string Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-01-12 01:45 +0100
                Re: extracting numbers with decimal places from a string Chris Angelico <rosuav@gmail.com> - 2015-01-12 11:17 +1100
          Re: extracting numbers with decimal places from a string Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-01-12 11:45 +1100
        Re: extracting numbers with decimal places from a string Grant Edwards <invalid@invalid.invalid> - 2015-01-11 23:06 +0000
  Re: extracting numbers with decimal places from a string Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-01-12 00:07 +0100
    Re: extracting numbers with decimal places from a string Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-01-12 00:04 +0000
      Re: extracting numbers with decimal places from a string Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-01-12 02:00 +0100
    Re: extracting numbers with decimal places from a string MRAB <python@mrabarnett.plus.com> - 2015-01-12 00:59 +0000
    Re: extracting numbers with decimal places from a string Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-01-12 12:13 +1100

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