Python: itertools - Combinatoric iterators

Python

itertools - Functions creating iterators for efficient looping

개념

iterator(반복자)

Combinatoric iterators | iterator | Arguments | Results | | :-: | :-: | :-: | :-: | :-: | | product() | p, q, … repeat = 1 | | | permutations() | p[, r] | | | combinations() | p, r | | | combinations_with_replacement() | p, r | |

Examples	Results
product(‘ABCD’, repeat=2)	AA AB AC AD BA BB BC BD CA CB CC CD DA DB DC DD
permutations(‘ABCD’, 2)	AB AC AD BA BC BD CA CB CD DA DB DC
combinations(‘ABCD’, 2)	AB AC AD BC BD CD
combinations_with_replacement(‘ABCD’, 2)	AA AB AC AD BB BC BD CC CD DD

print(list(itertools.combinations([0, 1, 2, 3, 4, 5], 1)))
print(list(itertools.combinations(range(6), 1)))
# output: [(0,), (1,), (2,), (3,), (4,), (5,)]