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28 lines
492 B
Python
28 lines
492 B
Python
#!/usr/bin/env python
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__author__ = "bt3"
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from collections import defaultdict
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def defaultdict_example():
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''' show some examples for defaultdicts '''
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pairs = {('a', 1), ('b',2), ('c',3)}
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d1 = {}
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for key, value in pairs:
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if key not in d1:
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d1[key] = []
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d1[key].append(value)
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print(d1)
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d2 = defaultdict(list)
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for key, value in pairs:
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d2[key].append(value)
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print(d2)
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if __name__ == '__main__':
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defaultdict_example()
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