Given a list of dictionaries, how can I eliminate duplicates of one key, and sort by another

Question

I\'m working with a list of dict objects that looks like this (the order of the objects differs):

[
    {\'name\': \'Foo\', \'score         


        

Answer 1

Sorting is half the battle.

import itertools
import operator

scores = [
    {'name': 'Foo', 'score': 1},
    {'name': 'Bar', 'score': 2},
    {'name': 'Foo', 'score': 3},
    {'name': 'Bar', 'score': 3},
    {'name': 'Foo', 'score': 2},
    {'name': 'Baz', 'score': 2},
    {'name': 'Baz', 'score': 1},
    {'name': 'Bar', 'score': 1}
]

result = []
sl = sorted(scores, key=operator.itemgetter('name', 'score'),
  reverse=True)
name = object()
for el in sl:
  if el['name'] == name:
    continue
  name = el['name']
  result.append(el)
print result