30-seconds-of-code/snippets/sort_dict_by_key.md

title, tags, expertise, author, firstSeen, lastUpdated

title	tags	expertise	author	firstSeen	lastUpdated
Sort dictionary by key	dictionary	intermediate	maciv	2020-10-16T21:24:33+03:00	2020-11-02T19:28:35+02:00

Sorts the given dictionary by key.

• Use dict.items() to get a list of tuple pairs from d and sort it using sorted().
• Use dict() to convert the sorted list back to a dictionary.
• Use the reverse parameter in sorted() to sort the dictionary in reverse order, based on the second argument.

def sort_dict_by_key(d, reverse = False):
  return dict(sorted(d.items(), reverse = reverse))

d = {'one': 1, 'three': 3, 'five': 5, 'two': 2, 'four': 4}
sort_dict_by_key(d) # {'five': 5, 'four': 4, 'one': 1, 'three': 3, 'two': 2}
sort_dict_by_key(d, True)
# {'two': 2, 'three': 3, 'one': 1, 'four': 4, 'five': 5}