itertools.takewhile()

itertools.takewhile(predicate, iterable)

Make an iterator that returns elements from the iterable as long as the predicate is true. Roughly equivalent to:

def takewhile(predicate, iterable):
    # takewhile(lambda x: x<5, [1,4,6,4,1]) --> 1 4
    for x in iterable:
        if predicate(x):
            yield x
        else:
            break

Links:

https://docs.python.org/3.5/library/itertools.html#itertools.takewhile

doc_python

2016-10-07 17:35:48

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