defaultdict check if key exists

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Angelo
10 Feb 2019
1dct.get(key, 'ham')  # will return dct[key] or 'ham' but never stores anything
2
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Bree
26 Oct 2018
1'in' is the intended way to test for the existence of a key in a dict.
2
3d = {"key1": 10, "key2": 23}
4
5if "key1" in d:
6    print("this will execute")
7
8if "nonexistent key" in d:
9    print("this will not")
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