From: Raymond Hettinger <python@rcn.com>
Date: Sat, 5 Jun 2004 14:53:22 +0000 (+0000)
Subject: SF bug #964230:  random.choice([]) should return more intelligible exception
X-Git-Tag: v2.4a1~261
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9021c955951c63ef3075b4751615af329427d3ec;p=python

SF bug #964230:  random.choice([]) should return more intelligible exception

Add a comment to make the traceback less mysterious.
---

diff --git a/Lib/random.py b/Lib/random.py
index 58865fc59b..92163bb608 100644
--- a/Lib/random.py
+++ b/Lib/random.py
@@ -237,7 +237,7 @@ class Random(_random.Random):
 
     def choice(self, seq):
         """Choose a random element from a non-empty sequence."""
-        return seq[int(self.random() * len(seq))]
+        return seq[int(self.random() * len(seq))]  # raises IndexError in seq is empty
 
     def shuffle(self, x, random=None, int=int):
         """x, random=random.random -> shuffle list x in place; return None.