changeset:   105834:0001ae913759
branch:      3.6
parent:      105831:a48cc85e5706
user:        Raymond Hettinger <python@rcn.com>
date:        Tue Dec 27 01:06:52 2016 -0800
files:       Lib/random.py Misc/NEWS
description:
Issue #29055: Suppress upstream exception for random.choice()


diff -r a48cc85e5706 -r 0001ae913759 Lib/random.py
--- a/Lib/random.py	Tue Dec 27 00:05:26 2016 -0500
+++ b/Lib/random.py	Tue Dec 27 01:06:52 2016 -0800
@@ -254,7 +254,7 @@
         try:
             i = self._randbelow(len(seq))
         except ValueError:
-            raise IndexError('Cannot choose from an empty sequence')
+            raise IndexError('Cannot choose from an empty sequence') from None
         return seq[i]
 
     def shuffle(self, x, random=None):
diff -r a48cc85e5706 -r 0001ae913759 Misc/NEWS
--- a/Misc/NEWS	Tue Dec 27 00:05:26 2016 -0500
+++ b/Misc/NEWS	Tue Dec 27 01:06:52 2016 -0800
@@ -42,6 +42,9 @@
 
 - Issue 28923: Remove editor artifacts from Tix.py.
 
+- Issue #29055:  Neaten-up empty population error on random.choice()
+  by suppressing the upstream exception.
+
 - Issue #28871: Fixed a crash when deallocate deep ElementTree.
 
 - Issue #19542: Fix bugs in WeakValueDictionary.setdefault() and