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burakdede/itemgetter_vs_lambda.py

Created August 21, 2016 18:22
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Sort with lambda vs itemgetter from operator
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itemgetter_vs_lambda.py
"""
[{'fname': 'Big', 'lname': 'Jones', 'uid': 1004}, {'fname': 'John', 'lname': 'Jones', 'uid': 1003}, {'fname': 'John', 'lname': 'Jones', 'uid': 8888}, {'fname': 'John', 'lname': 'Jones', 'uid': 9999}, {'fname': 'Rick', 'lname': 'Cleese', 'uid': 1001}, {'fname': 'Steve', 'lname': 'Madden', 'uid': 1002}]
[{'fname': 'Big', 'lname': 'Jones', 'uid': 1004}, {'fname': 'John', 'lname': 'Jones', 'uid': 1003}, {'fname': 'John', 'lname': 'Jones', 'uid': 8888}, {'fname': 'John', 'lname': 'Jones', 'uid': 9999}, {'fname': 'Rick', 'lname': 'Cleese', 'uid': 1001}, {'fname': 'Steve', 'lname': 'Madden', 'uid': 1002}]
"""
from operator import itemgetter
rows = [
{'fname': 'John', 'lname': 'Jones', 'uid': 1003},
{'fname': 'John', 'lname': 'Jones', 'uid': 9999},
{'fname': 'John', 'lname': 'Jones', 'uid': 8888},
{'fname': 'Steve', 'lname': 'Madden', 'uid': 1002},
{'fname': 'Rick', 'lname': 'Cleese', 'uid': 1001},
{'fname': 'Big', 'lname': 'Jones', 'uid': 1004}
]
print(sorted(rows, key=itemgetter("fname", "uid")))
print(sorted(rows, key=lambda x: (x["fname"], x["uid"])))
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