/usr/lib/python2.7/dist-packages/mercurial/ is in mercurial-common 2.0.2-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/mercurial/__init__.py
/usr/lib/python2.7/dist-packages/mercurial/__version__.py
/usr/lib/python2.7/dist-packages/mercurial/ancestor.py
/usr/lib/python2.7/dist-packages/mercurial/archival.py
/usr/lib/python2.7/dist-packages/mercurial/bookmarks.py
/usr/lib/python2.7/dist-packages/mercurial/bundlerepo.py
/usr/lib/python2.7/dist-packages/mercurial/byterange.py
/usr/lib/python2.7/dist-packages/mercurial/changegroup.py
/usr/lib/python2.7/dist-packages/mercurial/changelog.py
/usr/lib/python2.7/dist-packages/mercurial/cmdutil.py
/usr/lib/python2.7/dist-packages/mercurial/commands.py
/usr/lib/python2.7/dist-packages/mercurial/commandserver.py
/usr/lib/python2.7/dist-packages/mercurial/config.py
/usr/lib/python2.7/dist-packages/mercurial/context.py
/usr/lib/python2.7/dist-packages/mercurial/copies.py
/usr/lib/python2.7/dist-packages/mercurial/dagparser.py
/usr/lib/python2.7/dist-packages/mercurial/dagutil.py
/usr/lib/python2.7/dist-packages/mercurial/demandimport.py
/usr/lib/python2.7/dist-packages/mercurial/dirstate.py
/usr/lib/python2.7/dist-packages/mercurial/discovery.py
/usr/lib/python2.7/dist-packages/mercurial/dispatch.py
/usr/lib/python2.7/dist-packages/mercurial/encoding.py
/usr/lib/python2.7/dist-packages/mercurial/error.py
/usr/lib/python2.7/dist-packages/mercurial/extensions.py
/usr/lib/python2.7/dist-packages/mercurial/fancyopts.py
/usr/lib/python2.7/dist-packages/mercurial/filelog.py
/usr/lib/python2.7/dist-packages/mercurial/filemerge.py
/usr/lib/python2.7/dist-packages/mercurial/fileset.py
/usr/lib/python2.7/dist-packages/mercurial/graphmod.py
/usr/lib/python2.7/dist-packages/mercurial/hbisect.py
/usr/lib/python2.7/dist-packages/mercurial/help.py
/usr/lib/python2.7/dist-packages/mercurial/hg.py
/usr/lib/python2.7/dist-packages/mercurial/hgweb/
/usr/lib/python2.7/dist-packages/mercurial/hgweb/__init__.py
/usr/lib/python2.7/dist-packages/mercurial/hgweb/common.py
/usr/lib/python2.7/dist-packages/mercurial/hgweb/hgweb_mod.py
/usr/lib/python2.7/dist-packages/mercurial/hgweb/hgwebdir_mod.py
/usr/lib/python2.7/dist-packages/mercurial/hgweb/protocol.py
/usr/lib/python2.7/dist-packages/mercurial/hgweb/request.py
/usr/lib/python2.7/dist-packages/mercurial/hgweb/server.py
/usr/lib/python2.7/dist-packages/mercurial/hgweb/webcommands.py
/usr/lib/python2.7/dist-packages/mercurial/hgweb/webutil.py
/usr/lib/python2.7/dist-packages/mercurial/hgweb/wsgicgi.py
/usr/lib/python2.7/dist-packages/mercurial/hook.py
/usr/lib/python2.7/dist-packages/mercurial/httpclient/
/usr/lib/python2.7/dist-packages/mercurial/httpclient/__init__.py
/usr/lib/python2.7/dist-packages/mercurial/httpclient/socketutil.py
/usr/lib/python2.7/dist-packages/mercurial/httpclient/tests/
/usr/lib/python2.7/dist-packages/mercurial/httpclient/tests/__init__.py
/usr/lib/python2.7/dist-packages/mercurial/httpclient/tests/simple_http_test.py
/usr/lib/python2.7/dist-packages/mercurial/httpclient/tests/test_bogus_responses.py
/usr/lib/python2.7/dist-packages/mercurial/httpclient/tests/test_chunked_transfer.py
/usr/lib/python2.7/dist-packages/mercurial/httpclient/tests/test_proxy_support.py
/usr/lib/python2.7/dist-packages/mercurial/httpclient/tests/test_ssl.py
/usr/lib/python2.7/dist-packages/mercurial/httpclient/tests/util.py
/usr/lib/python2.7/dist-packages/mercurial/httpconnection.py
/usr/lib/python2.7/dist-packages/mercurial/httprepo.py
/usr/lib/python2.7/dist-packages/mercurial/i18n.py
/usr/lib/python2.7/dist-packages/mercurial/ignore.py
/usr/lib/python2.7/dist-packages/mercurial/keepalive.py
/usr/lib/python2.7/dist-packages/mercurial/localrepo.py
/usr/lib/python2.7/dist-packages/mercurial/lock.py
/usr/lib/python2.7/dist-packages/mercurial/lsprof.py
/usr/lib/python2.7/dist-packages/mercurial/lsprofcalltree.py
/usr/lib/python2.7/dist-packages/mercurial/mail.py
/usr/lib/python2.7/dist-packages/mercurial/manifest.py
/usr/lib/python2.7/dist-packages/mercurial/match.py
/usr/lib/python2.7/dist-packages/mercurial/mdiff.py
/usr/lib/python2.7/dist-packages/mercurial/merge.py
/usr/lib/python2.7/dist-packages/mercurial/minirst.py
/usr/lib/python2.7/dist-packages/mercurial/node.py
/usr/lib/python2.7/dist-packages/mercurial/parser.py
/usr/lib/python2.7/dist-packages/mercurial/patch.py
/usr/lib/python2.7/dist-packages/mercurial/posix.py
/usr/lib/python2.7/dist-packages/mercurial/pushkey.py
/usr/lib/python2.7/dist-packages/mercurial/py3kcompat.py
/usr/lib/python2.7/dist-packages/mercurial/repair.py
/usr/lib/python2.7/dist-packages/mercurial/repo.py
/usr/lib/python2.7/dist-packages/mercurial/revlog.py
/usr/lib/python2.7/dist-packages/mercurial/revset.py
/usr/lib/python2.7/dist-packages/mercurial/scmutil.py
/usr/lib/python2.7/dist-packages/mercurial/setdiscovery.py
/usr/lib/python2.7/dist-packages/mercurial/similar.py
/usr/lib/python2.7/dist-packages/mercurial/simplemerge.py
/usr/lib/python2.7/dist-packages/mercurial/sshrepo.py
/usr/lib/python2.7/dist-packages/mercurial/sshserver.py
/usr/lib/python2.7/dist-packages/mercurial/sslutil.py
/usr/lib/python2.7/dist-packages/mercurial/statichttprepo.py
/usr/lib/python2.7/dist-packages/mercurial/store.py
/usr/lib/python2.7/dist-packages/mercurial/strutil.py
/usr/lib/python2.7/dist-packages/mercurial/subrepo.py
/usr/lib/python2.7/dist-packages/mercurial/tags.py
/usr/lib/python2.7/dist-packages/mercurial/templatefilters.py
/usr/lib/python2.7/dist-packages/mercurial/templatekw.py
/usr/lib/python2.7/dist-packages/mercurial/templater.py
/usr/lib/python2.7/dist-packages/mercurial/transaction.py
/usr/lib/python2.7/dist-packages/mercurial/treediscovery.py
/usr/lib/python2.7/dist-packages/mercurial/ui.py
/usr/lib/python2.7/dist-packages/mercurial/url.py
/usr/lib/python2.7/dist-packages/mercurial/util.py
/usr/lib/python2.7/dist-packages/mercurial/verify.py
/usr/lib/python2.7/dist-packages/mercurial/win32.py
/usr/lib/python2.7/dist-packages/mercurial/windows.py
/usr/lib/python2.7/dist-packages/mercurial/wireproto.py