/usr/lib/python3/dist-packages/glances/core/ is in glances 2.1.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/glances/core/__init__.py
/usr/lib/python3/dist-packages/glances/core/glances_client.py
/usr/lib/python3/dist-packages/glances/core/glances_config.py
/usr/lib/python3/dist-packages/glances/core/glances_globals.py
/usr/lib/python3/dist-packages/glances/core/glances_logging.py
/usr/lib/python3/dist-packages/glances/core/glances_logs.py
/usr/lib/python3/dist-packages/glances/core/glances_main.py
/usr/lib/python3/dist-packages/glances/core/glances_monitor_list.py
/usr/lib/python3/dist-packages/glances/core/glances_password.py
/usr/lib/python3/dist-packages/glances/core/glances_processes.py
/usr/lib/python3/dist-packages/glances/core/glances_server.py
/usr/lib/python3/dist-packages/glances/core/glances_snmp.py
/usr/lib/python3/dist-packages/glances/core/glances_standalone.py
/usr/lib/python3/dist-packages/glances/core/glances_stats.py
/usr/lib/python3/dist-packages/glances/core/glances_timer.py
/usr/lib/python3/dist-packages/glances/core/glances_webserver.py