tree 8cf90251718137f576117a39922165165ab8a5f8
parent 57ba55b77deb297dfada56e3e15cb91697665b06
author Walter Dörwald <walter@livinglogic.de> 1044376080 +0000
committer Walter Dörwald <walter@livinglogic.de> 1044376080 +0000
HG:extra convert_revision:svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/python/branches/legacy-trunk%4031203

filterstring() and filterunicode() in Python/bltinmodule.c
blindly assumed that tp_as_sequence->sq_item always returns
a str or unicode object. This might fail with str or unicode
subclasses.

This patch checks whether the object returned from __getitem__
is a str/unicode object and raises a TypeError if not (and
the filter function returned true).

Furthermore the result for __getitem__ can be more than one
character long, so checks for enough memory have to be done.