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/compress(), dropwhile() and filterfalse()
compress(), dropwhile() and filterfalse()
Let's figure out the iterators that do not terminate. i.e. compress(), dropwhile() and filterfalse().
We'll cover the following...
compress(data, selectors)
The compress sub-module is useful for picking the first iterable values
according to the second iterable Boolean values. This works by making the second iterable a list of
Booleans (or ones and zeroes which amounts to the same thing). Here’s
how it works:
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from itertools import compressletters = 'ABCDEFG'bools = [True, False, True, True, False]print (list(compress(letters, bools)))#['A', 'C', 'D']
In this example, we have a group of seven letters and a list of five bools. Then we pass them into the compress function. The compress ...