/usr/lib/python3/dist-packages/alembic/templates/ is in python3-alembic 0.9.3-2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/alembic/templates/generic/
/usr/lib/python3/dist-packages/alembic/templates/generic/README
/usr/lib/python3/dist-packages/alembic/templates/generic/alembic.ini.mako
/usr/lib/python3/dist-packages/alembic/templates/generic/env.py
/usr/lib/python3/dist-packages/alembic/templates/generic/script.py.mako
/usr/lib/python3/dist-packages/alembic/templates/multidb/
/usr/lib/python3/dist-packages/alembic/templates/multidb/README
/usr/lib/python3/dist-packages/alembic/templates/multidb/alembic.ini.mako
/usr/lib/python3/dist-packages/alembic/templates/multidb/env.py
/usr/lib/python3/dist-packages/alembic/templates/multidb/script.py.mako
/usr/lib/python3/dist-packages/alembic/templates/pylons/
/usr/lib/python3/dist-packages/alembic/templates/pylons/README
/usr/lib/python3/dist-packages/alembic/templates/pylons/alembic.ini.mako
/usr/lib/python3/dist-packages/alembic/templates/pylons/env.py
/usr/lib/python3/dist-packages/alembic/templates/pylons/script.py.mako