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Note the output ordering of combinatoric functions (GH-19732) (GH-20501)

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Miss Islington (bot) 2020-05-28 13:32:36 -07:00 • committed by GitHub
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Doc/library/itertools.rst
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@ -199,9 +199,9 @@ loops that truncate the stream.
Return *r* length subsequences of elements from the input *iterable*. Return *r* length subsequences of elements from the input *iterable*.
Combinations are emitted in lexicographic sort order. So, if the The combination tuples are emitted in lexicographic ordering according to
input *iterable* is sorted, the combination tuples will be produced the order of the input *iterable*. So, if the input *iterable* is sorted,
in sorted order. the combination tuples will be produced in sorted order.
Elements are treated as unique based on their position, not on their Elements are treated as unique based on their position, not on their
value. So if the input elements are unique, there will be no repeat value. So if the input elements are unique, there will be no repeat
@ -248,9 +248,9 @@ loops that truncate the stream.
Return *r* length subsequences of elements from the input *iterable* Return *r* length subsequences of elements from the input *iterable*
allowing individual elements to be repeated more than once. allowing individual elements to be repeated more than once.
Combinations are emitted in lexicographic sort order. So, if the The combination tuples are emitted in lexicographic ordering according to
input *iterable* is sorted, the combination tuples will be produced the order of the input *iterable*. So, if the input *iterable* is sorted,
in sorted order. the combination tuples will be produced in sorted order.
Elements are treated as unique based on their position, not on their Elements are treated as unique based on their position, not on their
value. So if the input elements are unique, the generated combinations value. So if the input elements are unique, the generated combinations
@ -484,9 +484,9 @@ loops that truncate the stream.
of the *iterable* and all possible full-length permutations of the *iterable* and all possible full-length permutations
are generated. are generated.
Permutations are emitted in lexicographic sort order. So, if the The permutation tuples are emitted in lexicographic ordering according to
input *iterable* is sorted, the permutation tuples will be produced the order of the input *iterable*. So, if the input *iterable* is sorted,
in sorted order. the combination tuples will be produced in sorted order.
Elements are treated as unique based on their position, not on their Elements are treated as unique based on their position, not on their
value. So if the input elements are unique, there will be no repeat value. So if the input elements are unique, there will be no repeat