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how to concatenate two dictionaries to create a new one in Python? [duplicate]
...3:22}' \
'd4 = dict(d1, **d2); d4.update(d3)'
1000000 loops, best of 3: 1.88 usec per loop
Middling: a loop of update calls on an initially-empty dict:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9}; d3={10:8,13:22}' \
'd4 = {}' 'for d in (d1, d2, d3): d4.update(d)'
100000 loops, best of 3: 2.6...
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answered Jun 29 '13 at 19:16
FentonFenton
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scheduleAtFixedRate vs scheduleWithFixedDelay
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