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Groups > comp.lang.python > #83568

Re: extracting numbers with decimal places from a string

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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']

-- 
PointedEars

Twitter: @PointedEars2
Please do not cc me. / Bitte keine Kopien per E-Mail.

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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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