/usr/lib/python3/dist-packages/heatclient/common/ is in python3-heatclient 1.14.0-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/heatclient/common/__init__.py
/usr/lib/python3/dist-packages/heatclient/common/base.py
/usr/lib/python3/dist-packages/heatclient/common/deployment_utils.py
/usr/lib/python3/dist-packages/heatclient/common/environment_format.py
/usr/lib/python3/dist-packages/heatclient/common/event_utils.py
/usr/lib/python3/dist-packages/heatclient/common/format_utils.py
/usr/lib/python3/dist-packages/heatclient/common/hook_utils.py
/usr/lib/python3/dist-packages/heatclient/common/http.py
/usr/lib/python3/dist-packages/heatclient/common/resource_formatter.py
/usr/lib/python3/dist-packages/heatclient/common/template_format.py
/usr/lib/python3/dist-packages/heatclient/common/template_utils.py
/usr/lib/python3/dist-packages/heatclient/common/utils.py