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johnpaulhayes/sum_value_in_dict.py

Last active August 29, 2015 14:19
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Sum a value field in a dictionary
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sum_value_in_dict.py
dicts_with_values = [{"value": 30}, {"value": 20}, {"value": 1}]
""" Horrible! """
result = reduce(lambda x, y: x + y, [i["value"] for i in dicts_with_values])
""" Nice, Pythonic """
result = sum([i["value"] for i in dicts_with_values])
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