/usr/lib/pyshared/ is in python-bzrlib 2.6.0~bzr6526-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/pyshared/python2.6/
/usr/lib/pyshared/python2.6/bzrlib/
/usr/lib/pyshared/python2.6/bzrlib/_annotator_pyx.so
/usr/lib/pyshared/python2.6/bzrlib/_bencode_pyx.so
/usr/lib/pyshared/python2.6/bzrlib/_btree_serializer_pyx.so
/usr/lib/pyshared/python2.6/bzrlib/_chk_map_pyx.so
/usr/lib/pyshared/python2.6/bzrlib/_chunks_to_lines_pyx.so
/usr/lib/pyshared/python2.6/bzrlib/_dirstate_helpers_pyx.so
/usr/lib/pyshared/python2.6/bzrlib/_groupcompress_pyx.so
/usr/lib/pyshared/python2.6/bzrlib/_knit_load_data_pyx.so
/usr/lib/pyshared/python2.6/bzrlib/_known_graph_pyx.so
/usr/lib/pyshared/python2.6/bzrlib/_patiencediff_c.so
/usr/lib/pyshared/python2.6/bzrlib/_readdir_pyx.so
/usr/lib/pyshared/python2.6/bzrlib/_rio_pyx.so
/usr/lib/pyshared/python2.6/bzrlib/_simple_set_pyx.so
/usr/lib/pyshared/python2.6/bzrlib/_static_tuple_c.so
/usr/lib/pyshared/python2.7/
/usr/lib/pyshared/python2.7/bzrlib/
/usr/lib/pyshared/python2.7/bzrlib/_annotator_pyx.so
/usr/lib/pyshared/python2.7/bzrlib/_bencode_pyx.so
/usr/lib/pyshared/python2.7/bzrlib/_btree_serializer_pyx.so
/usr/lib/pyshared/python2.7/bzrlib/_chk_map_pyx.so
/usr/lib/pyshared/python2.7/bzrlib/_chunks_to_lines_pyx.so
/usr/lib/pyshared/python2.7/bzrlib/_dirstate_helpers_pyx.so
/usr/lib/pyshared/python2.7/bzrlib/_groupcompress_pyx.so
/usr/lib/pyshared/python2.7/bzrlib/_knit_load_data_pyx.so
/usr/lib/pyshared/python2.7/bzrlib/_known_graph_pyx.so
/usr/lib/pyshared/python2.7/bzrlib/_patiencediff_c.so
/usr/lib/pyshared/python2.7/bzrlib/_readdir_pyx.so
/usr/lib/pyshared/python2.7/bzrlib/_rio_pyx.so
/usr/lib/pyshared/python2.7/bzrlib/_simple_set_pyx.so
/usr/lib/pyshared/python2.7/bzrlib/_static_tuple_c.so