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GH-100805: Support numpy.array() in random.choice(). (GH-100830)

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Raymond Hettinger 2023-01-08 13:40:35 -06:00 • committed by GitHub
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commit 9a68ff12c3
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3 changed files with 21 additions and 1 deletions
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5
Lib/random.py
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@ -336,7 +336,10 @@ class Random(_random.Random):
def choice(self, seq):
"""Choose a random element from a non-empty sequence."""
if not seq:
# As an accommodation for NumPy, we don't use "if not seq"
# because bool(numpy.array()) raises a ValueError.
if not len(seq):
raise IndexError('Cannot choose from an empty sequence')
return seq[self._randbelow(len(seq))]