gh-154001: Address review comments

Author: lkk7

Lib/random.py

@@ -861,9 +861,11 @@ def binomialvariate(self, n=1, p=0.5):
             u = random()
             u -= 0.5
             us = 0.5 - _fabs(u)
-            if us == 0.0:
+            try:
+                k = _floor((2.0 * a / us + b) * u + c)
+            except ZeroDivisionError:
+                # Reject case where random() returned 0.0
                 continue
-            k = _floor((2.0 * a / us + b) * u + c)
             if k < 0 or k > n:
                 continue
             v = random()

Misc/NEWS.d/next/Library/2026-07-18-17-09-49.gh-issue-154001.3brrUv.rst

@@ -1,2 +1,2 @@
-Fix ``random.Random.binomialvariate()`` raising :exc:`ZeroDivisionError`
-when a random draw is zero.
+Fix :func:`random.binomialvariate` raising :exc:`ZeroDivisionError`
+when :func:`random.random` returns zero.