/usr/lib/python3.6/multiprocessing/ is in libpython3.6-stdlib 3.6.5-3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3.6/multiprocessing/__init__.py
/usr/lib/python3.6/multiprocessing/connection.py
/usr/lib/python3.6/multiprocessing/context.py
/usr/lib/python3.6/multiprocessing/dummy/
/usr/lib/python3.6/multiprocessing/dummy/__init__.py
/usr/lib/python3.6/multiprocessing/dummy/connection.py
/usr/lib/python3.6/multiprocessing/forkserver.py
/usr/lib/python3.6/multiprocessing/heap.py
/usr/lib/python3.6/multiprocessing/managers.py
/usr/lib/python3.6/multiprocessing/pool.py
/usr/lib/python3.6/multiprocessing/popen_fork.py
/usr/lib/python3.6/multiprocessing/popen_forkserver.py
/usr/lib/python3.6/multiprocessing/popen_spawn_posix.py
/usr/lib/python3.6/multiprocessing/popen_spawn_win32.py
/usr/lib/python3.6/multiprocessing/process.py
/usr/lib/python3.6/multiprocessing/queues.py
/usr/lib/python3.6/multiprocessing/reduction.py
/usr/lib/python3.6/multiprocessing/resource_sharer.py
/usr/lib/python3.6/multiprocessing/semaphore_tracker.py
/usr/lib/python3.6/multiprocessing/sharedctypes.py
/usr/lib/python3.6/multiprocessing/spawn.py
/usr/lib/python3.6/multiprocessing/synchronize.py
/usr/lib/python3.6/multiprocessing/util.py