tree abf6639ce3bd8515011ff2bbeadc45f8a07caa73
parent 29273c87da0ef361f84fee41385f7c991536f9cd
author Walter Dörwald <walter@livinglogic.de> 1044390285 +0000
committer Walter Dörwald <walter@livinglogic.de> 1044390285 +0000
HG:extra convert_revision:svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/python/branches/legacy-trunk%4031210

Make sure filter() never returns tuple, str or unicode
subclasses. (Discussed in SF patch #665835)