| Add a private ``_at_fork_reinit()`` method to :class:`_thread.Lock`, | |
| :class:`_thread.RLock`, :class:`threading.RLock` and | |
| :class:`threading.Condition` classes: reinitialize the lock at fork in the | |
| child process, reset the lock to the unlocked state. | |
| Rename also the private ``_reset_internal_locks()`` method of | |
| :class:`threading.Event` to ``_at_fork_reinit()``. |