tree f45f81d60dfa73539102e5ee5a14225dddbe8398
parent 20eb4f078237e8bc7a5ac970714cee4d8feb7a09
author Mark Dickinson <dickinsm@gmail.com> 1258288273 +0000
committer Mark Dickinson <dickinsm@gmail.com> 1258288273 +0000
HG:extra convert_revision:svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/python/branches/legacy-trunk%4076295

Avoid signed overflow in some xrange calculations, and extend
xrange tests to cover some special cases that caused problems
in py3k.  This is a partial backport of r76292-76293 (see
issue #7298.)