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Iterate through pairs of items in a Python list [duplicate]
...ipes:
from itertools import tee
def pairwise(iterable):
"s -> (s0,s1), (s1,s2), (s2, s3), ..."
a, b = tee(iterable)
next(b, None)
return zip(a, b)
for v, w in pairwise(a):
...
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edited Dec 20 '17 at 8:37
chelmertz
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