python package goes to wrong path

[Robert Collins]

--prefix is not correctly honoured for the vfs/__init__.py python script:
test -z "/usr/local/lib/pkgconfig" || /bin/mkdir -p "/usr/local/lib/pkgconfig"
 /usr/bin/install -c -m 644 'libvfs.pc' '/usr/local/lib/pkgconfig/libvfs.pc'
test -z "/usr/lib/python2.6/dist-packages/vfs" || /bin/mkdir -p "/usr/lib/python2.6/dist-packages/vfs"
 /usr/bin/install -c -m 644 'python/vfs/__init__.py' '/usr/lib/python2.6/dist-packages/vfs/__init__.py'
or for the python C extension:
/usr/lib/python2.6/dist-packages/vfs/_pyvfs.so