code: def release(self):
          
          if not self.is_locked():
              raise NotLocked("%s is not locked" % self.path)
          if not self.i_am_locking():
              raise NotMyLock("%s is locked, but not by me" % self.path)
          remove_existing_pidfile(self.path)
docs: Release the lock.
  
              Removes the PID file to release the lock, or raises an
              error if the current process does not hold the lock.