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Re: Please help on this sorted function

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Date Tue, 2 Jun 2015 23:42:31 +0300
Subject Re: Please help on this sorted function
From Joonas Liik <liik.joonas@gmail.com>
To fl <rxjwg98@gmail.com>, Python <python-list@python.org>
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Xref csiph.com comp.lang.python:91894

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my_dict = {1: 'D', 2: 'B', 3: 'A', 4: 'E', 5: 'B'}

# dict.items() returns an iterator that returns pairs of (key, value) pairs
# the key argument to sorted tells sorted what to sort by,
operator.itemgetter is a factory function , itemgetter(1)== lambda
iterable: iterable[1]
sorted_dict = sorted(my_dict.items(), key=itemgetter(1))

# at this moment sorted dict is a generator of key-value tuples in the
right order
sorted_dict = OrderedDict(sorted_dict) # turn the generator in to an actual
dict.

# notice: regular dicts are NOT ORDERED, you need a special type of dict to
preserve the order, hence OrderedDict

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Thread

Please help on this sorted function fl <rxjwg98@gmail.com> - 2015-06-02 13:20 -0700
  Re: Please help on this sorted function fl <rxjwg98@gmail.com> - 2015-06-02 13:25 -0700
    Re: Please help on this sorted function Joonas Liik <liik.joonas@gmail.com> - 2015-06-02 23:42 +0300
      Re: Please help on this sorted function Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-06-03 18:21 +1000
    Re: Please help on this sorted function Chris Angelico <rosuav@gmail.com> - 2015-06-03 10:01 +1000
  Re: Please help on this sorted function Joonas Liik <liik.joonas@gmail.com> - 2015-06-02 23:32 +0300
  Re: Please help on this sorted function Gary Herron <gherron@digipen.edu> - 2015-06-02 14:00 -0700

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