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Re: Sort list of dictionaries

References <f1a339d0-0386-43ba-b6b4-1aee39d75581@googlegroups.com> <mailman.56.1425321135.13471.python-list@python.org> <946797be-10e6-433b-9411-2db0d5697ac8@googlegroups.com>
From Ian Kelly <ian.g.kelly@gmail.com>
Date 2015-03-02 11:55 -0700
Subject Re: Sort list of dictionaries
Newsgroups comp.lang.python
Message-ID <mailman.58.1425322577.13471.python-list@python.org> (permalink)

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On Mon, Mar 2, 2015 at 11:38 AM, Charles Heizer <ceh329@gmail.com> wrote:
> Sorry,
>
> sortedlist = sorted(mylist , key=lambda elem: "%s %s" % (elem['name'], LooseVersion(elem['version'])), reverse=True)
>
> This is what I was trying but LooseVersion() was not sorting version numbers like I thought it would. You will notice that Chrome version "40.0.2214.111" is higher than "40.0.2214.91" but in the end result it's not sorting it that way.

Because it's a string they're sorted lexicographically, and in that
ordering "40.0.2214.111" is less than "40.0.2214.91". Instead of a
string you should probably use some sort of version info tuple. A
simple tuple of ints may suffice, although you may need to get a
little cleverer if there are ever any version strings that aren't
entirely dotted numeric.

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Thread

Sort list of dictionaries Charles Heizer <ceh329@gmail.com> - 2015-03-02 10:17 -0800
  Re: Sort list of dictionaries Emile van Sebille <emile@fenx.com> - 2015-03-02 10:31 -0800
    Re: Sort list of dictionaries Charles Heizer <ceh329@gmail.com> - 2015-03-02 10:38 -0800
      Re: Sort list of dictionaries Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-02 11:55 -0700
      Re: Sort list of dictionaries Charles Heizer <ceh329@gmail.com> - 2015-03-02 10:58 -0800
        Re: Sort list of dictionaries Peter Otten <__peter__@web.de> - 2015-03-02 20:23 +0100
          Re: Sort list of dictionaries Charles Heizer <ceh329@gmail.com> - 2015-03-03 07:56 -0800
            Re: Sort list of dictionaries Chris Angelico <rosuav@gmail.com> - 2015-03-04 03:09 +1100
              Re: Sort list of dictionaries Paul  Moore <p.f.moore@gmail.com> - 2015-03-03 08:48 -0800
            Re: Sort list of dictionaries Peter Otten <__peter__@web.de> - 2015-03-03 18:44 +0100
      Re: Sort list of dictionaries Dave Angel <davea@davea.name> - 2015-03-02 13:59 -0500
      Re: Sort list of dictionaries Jason Friedman <jsf80238@gmail.com> - 2015-03-02 22:33 -0700
      Re: Sort list of dictionaries Chris Angelico <rosuav@gmail.com> - 2015-03-03 18:07 +1100
      Re: Sort list of dictionaries Jason Friedman <jsf80238@gmail.com> - 2015-03-03 07:45 -0700
      Re: Sort list of dictionaries Chris Angelico <rosuav@gmail.com> - 2015-03-04 01:50 +1100
  Re: Sort list of dictionaries Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-03-03 18:55 +1100

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