acquire(blocking=True, timeout=None) Acquire a semaphore. When invoked without arguments: if

dict() dict(mapping) dict(sequence) Create a shared dict

Barrier(parties[, action[, timeout]]) Create a shared

wait(timeout=None) Block until the internal flag is true. If the internal flag is true on entry, return immediately. Otherwise

imap(func, iterable[, chunksize]) A lazier version of

check_returncode() If returncode is non-zero, raise a CalledProcessError.

threading.main_thread() Return the main Thread object. In normal conditions, the main thread is the thread from

Popen.kill() Kills the child. On Posix OSs the function sends SIGKILL to the child. On Windows kill() is an alias

class multiprocessing.Barrier(parties[, action[, timeout]]) A barrier object: a clone of

acquire(*args) Acquire the underlying lock. This method calls the corresponding method on the underlying lock; the return value