/usr/share/pyshared/bzrlib/help_topics/ is in python-bzrlib 2.5.0-2ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/bzrlib/help_topics/__init__.py
/usr/share/pyshared/bzrlib/help_topics/en/
/usr/share/pyshared/bzrlib/help_topics/en/authentication.txt
/usr/share/pyshared/bzrlib/help_topics/en/configuration.txt
/usr/share/pyshared/bzrlib/help_topics/en/conflict-types.txt
/usr/share/pyshared/bzrlib/help_topics/en/content-filters.txt
/usr/share/pyshared/bzrlib/help_topics/en/debug-flags.txt
/usr/share/pyshared/bzrlib/help_topics/en/diverged-branches.txt
/usr/share/pyshared/bzrlib/help_topics/en/eol.txt
/usr/share/pyshared/bzrlib/help_topics/en/log-formats.txt
/usr/share/pyshared/bzrlib/help_topics/en/patterns.txt
/usr/share/pyshared/bzrlib/help_topics/en/rules.txt
/usr/share/pyshared/bzrlib/help_topics/en/url-special-chars.txt