class threading.Thread(group=None, target=None, name=None, args=(), kwargs={}, *, daemon=None) This constructor should always

apply(func[, args[, kwds]]) Call func with arguments args and keyword arguments kwds. It blocks until

BoundedSemaphore([value]) Create a shared

Queue.get_nowait() Equivalent to get(False).

pid Return the process ID. Before the process is spawned, this will be None.

task_done() Indicate that a formerly enqueued task is complete. Used by queue consumers. For each get() used to

exception subprocess.CalledProcessError Subclass of SubprocessError, raised when a process run by check_call()

wait_for(predicate, timeout=None) Wait until a condition evaluates to True. predicate should be a callable which result

class multiprocessing.Queue([maxsize]) Returns a process shared queue implemented using a pipe and a few locks/semaphores. When

exception(timeout=None) Return the exception raised by the call. If the call hasn’t yet completed then this method will wait