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Groups > comp.lang.python > #66403

Re: decimal numbers

References <833583c7-c307-4ebf-9a60-3be146a565b5@googlegroups.com> <ec88852e-1384-4aa5-834b-85135be94ab9@googlegroups.com> <ldne2i$hl8$1@ger.gmane.org>
Date 2014-02-15 21:13 +1100
Subject Re: decimal numbers
From Chris Angelico <rosuav@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.6977.1392459209.18130.python-list@python.org> (permalink)

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On Sat, Feb 15, 2014 at 9:04 PM, Frank Millman <frank@chagford.com> wrote:
> If you are using python2, an integer divided by an integer always returns an
> integer -
>
>>>> 10/3
> 3
>
> It was changed in python3 to return a float -
>
>>>> 10/3
> 3.3333333333333335
>
> You can reproduce the python3 behaviour in python2 by adding a 'future'
> directive -
>
>>>> from __future__ import division
>>>> 10/3
> 3.3333333333333335
>

Conversely, you can get an integer result by using floor division:

>>> 10//3
3

ChrisA

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decimal numbers luke.geelen@gmail.com - 2014-02-15 01:18 -0800
  Re: decimal numbers Luke Geelen <luke.geelen@gmail.com> - 2014-02-15 01:19 -0800
    Re: decimal numbers "Frank Millman" <frank@chagford.com> - 2014-02-15 12:04 +0200
      Re: decimal numbers Luke Geelen <luke.geelen@gmail.com> - 2014-02-15 02:32 -0800
        Re: decimal numbers "Frank Millman" <frank@chagford.com> - 2014-02-15 12:49 +0200
          Re: decimal numbers Luke Geelen <luke.geelen@gmail.com> - 2014-02-15 09:17 -0800
            Re: decimal numbers Ian Kelly <ian.g.kelly@gmail.com> - 2014-02-15 10:23 -0700
              Re: decimal numbers Luke Geelen <luke.geelen@gmail.com> - 2014-02-15 09:42 -0800
                Re: decimal numbers Luke Geelen <luke.geelen@gmail.com> - 2014-02-15 10:57 -0800
                Re: decimal numbers Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-02-15 19:06 +0000
                Re: decimal numbers Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-02-15 19:43 +0000
                Re: decimal numbers Ian Kelly <ian.g.kelly@gmail.com> - 2014-02-15 14:34 -0700
                Re: decimal numbers Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-02-16 02:30 +0000
                Re: decimal numbers Chris Angelico <rosuav@gmail.com> - 2014-02-16 13:36 +1100
        Re: decimal numbers "Frank Millman" <frank@chagford.com> - 2014-02-15 12:56 +0200
    Re: decimal numbers Chris Angelico <rosuav@gmail.com> - 2014-02-15 21:13 +1100
  Re: decimal numbers Laurent Pointal <laurent.pointal@free.fr> - 2014-02-15 15:52 +0100
  Re: decimal numbers Ian Kelly <ian.g.kelly@gmail.com> - 2014-02-15 10:20 -0700
  Re: decimal numbers wxjmfauth@gmail.com - 2014-02-16 04:19 -0800

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