/usr/share/mysql-workbench/libraries/ is in mysql-workbench-data 6.3.6+dfsg-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/mysql-workbench/libraries/db_utils.py
/usr/share/mysql-workbench/libraries/grt_python_debugger.py
/usr/share/mysql-workbench/libraries/wb.py
/usr/share/mysql-workbench/libraries/workbench/
/usr/share/mysql-workbench/libraries/workbench/__init__.py
/usr/share/mysql-workbench/libraries/workbench/change_tracker.py
/usr/share/mysql-workbench/libraries/workbench/client_utils.py
/usr/share/mysql-workbench/libraries/workbench/database_object_selector_widget.py
/usr/share/mysql-workbench/libraries/workbench/database_schema_selector_widget.py
/usr/share/mysql-workbench/libraries/workbench/db_driver.py
/usr/share/mysql-workbench/libraries/workbench/db_utils.py
/usr/share/mysql-workbench/libraries/workbench/exceptions.py
/usr/share/mysql-workbench/libraries/workbench/graphics/
/usr/share/mysql-workbench/libraries/workbench/graphics/__init__.py
/usr/share/mysql-workbench/libraries/workbench/graphics/cairo_utils.py
/usr/share/mysql-workbench/libraries/workbench/graphics/canvas.py
/usr/share/mysql-workbench/libraries/workbench/graphics/charting.py
/usr/share/mysql-workbench/libraries/workbench/log.py
/usr/share/mysql-workbench/libraries/workbench/notifications.py
/usr/share/mysql-workbench/libraries/workbench/os_utils.py
/usr/share/mysql-workbench/libraries/workbench/plugins.py
/usr/share/mysql-workbench/libraries/workbench/tcp_utils.py
/usr/share/mysql-workbench/libraries/workbench/template.py
/usr/share/mysql-workbench/libraries/workbench/ui.py
/usr/share/mysql-workbench/libraries/workbench/utils.py
/usr/share/mysql-workbench/libraries/workbench/wizard_form.py
/usr/share/mysql-workbench/libraries/workbench/wizard_page_widget.py
/usr/share/mysql-workbench/libraries/workbench/wizard_progress_page_widget.py