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unzip: perform the opposite of zip
March 8, 2018
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zip
>>> a = [1, 2, 3] >>> b = ["one", "two", "three"] >>> zip(a, b) <zip object at 0x7fd30310b508> >>> list(zip(a, b)) [(1, 'one'), (2, 'two'), (3, 'three')]
unzip
How to perform the opposite of zip? That is, we have [(1, 'one'), (2, 'two'), (3, 'three')], and we want to get back [1, 2, 3] and ["one", "two", "three"].
>>> li
[(1, 'one'), (2, 'two'), (3, 'three')]
>>> a, b = zip(*li)
>>> a
(1, 2, 3)
>>> b
('one', 'two', 'three')
Notice that the results are tuples.
More info here.
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