How do I sort a list of dictionaries by a value of the dictionary?

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How do I sort a list of dictionaries by a specific key’s value? Given:

[{'name': 'Homer', 'age': 39}, {'name': 'Bart', 'age': 10}]

When sorted by name, it should become:

[{'name': 'Bart', 'age': 10}, {'name': 'Homer', 'age': 39}]

Solution

The sorted() function takes a key= parameter

newlist = sorted(list_to_be_sorted, key=lambda d: d['name']) 

Alternatively, you can use operator.itemgetter instead of defining the function yourself

from operator import itemgetter
newlist = sorted(list_to_be_sorted, key=itemgetter('name')) 

For completeness, add reverse=True to sort in descending order

newlist = sorted(list_to_be_sorted, key=itemgetter('name'), reverse=True)

Source: StackOverflow.com

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