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bpo-37624: Document weight assumptions for random.choices() (GH-14855)

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Raymond Hettinger 2019-07-19 01:56:42 -07:00 committed by GitHub
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Doc/library/random.rst
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@ -160,7 +160,8 @@ Functions for sequences
The *weights* or *cum_weights* can use any numeric type that interoperates
with the :class:`float` values returned by :func:`random` (that includes
integers, floats, and fractions but excludes decimals).
integers, floats, and fractions but excludes decimals). Weights are
assumed to be non-negative.
For a given seed, the :func:`choices` function with equal weighting
typically produces a different sequence than repeated calls to