Skip to main content

sort dict by value 

# How to sort a Python dict by value
# (== get a representation sorted by value)

>>> xs = {'a': 4, 'b': 3, 'c': 2, 'd': 1}

>>> sorted(xs.items(), key=lambda x: x[1])
[('d', 1), ('c', 2), ('b', 3), ('a', 4)]

# Or:

>>> import operator
>>> sorted(xs.items(), key=operator.itemgetter(1))
[('d', 1), ('c', 2), ('b', 3), ('a', 4)]

Comments

Post a Comment

Popular posts from this blog

Merging two dicts

# How to merge two dictionaries # in Python 3.5+ >>> x = { 'a' : 1 , 'b' : 2 } >>> y = { 'b' : 3 , 'c' : 4 } >>> z = { ** x, ** y} >>> z {'c': 4, 'a': 1, 'b': 3} # In Python 2.x you could # use this: >>> z = dict (x, ** y) >>> z {'a': 1, 'c': 4, 'b': 3} # In these examples, Python merges dictionary keys # in the order listed in the expression, overwriting # duplicates from left to right. # # See: https://www.youtube.com/watch?v=Duexw08KaC8 This email is part of the Python Tricks series where you're getting a new Python trick every few days directly to your inbox. Enjoy! — Dan Bader ( realpython.com )
Read more