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gh-131435: random.randint optimization #131436

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merged 2 commits into from
Mar 20, 2025
Merged

gh-131435: random.randint optimization #131436

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bcba8f6
impl
dg-pb Mar 18, 2025
01244f4
📜🤖 Added by blurb_it.
blurb-it[bot] Mar 19, 2025
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7 changes: 5 additions & 2 deletions Lib/random.py
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Expand Up @@ -336,8 +336,11 @@ def randrange(self, start, stop=None, step=_ONE):
def randint(self, a, b):
"""Return random integer in range [a, b], including both end points.
"""

return self.randrange(a, b+1)
a = _index(a)
b = _index(b)
if b < a:
raise ValueError(f"empty range in randint({a}, {b})")
return a + self._randbelow(b - a + 1)


## -------------------- sequence methods -------------------
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Library/2025-03-19-20-37-07.gh-issue-131435.y8KMae.rst
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@@ -0,0 +1 @@
10-20% performance improvement of :func:`random.randint`.
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