python - itertools.repeat VS itertools.cycle -

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is there difference between itertools.repeat(n) , itertools.cycle(n)? seems, produce same output. 1 more efficient use in situation need infinite loop of element?

simply, itertools.repeat repeat given argument, , itertools.cycle cycle on given argument. don't run code, example:

from itertools import repeat, cycle  in repeat('abcd'): print(i) # abcd, abcd, abcd, abcd, ...  in cycle('abcd'): print(i) # a, b, c, d, a, b, c, d, ...

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