/usr/lib/python2.6/dist-packages/ZConfig/components/basic/mapping.xml is in python-zconfig 2.8.0-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.6/dist-packages/ZConfig/components/basic/../../../../../../share/pyshared/ZConfig/components/basic/mapping.xml