exception subprocess.TimeoutExpired Subclass of SubprocessError, raised when a timeout expires while waiting for

multiprocessing.get_start_method(allow_none=False) Return the name of start method used for starting processes.

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

close() Indicate that no more data will be put on this queue by the current process. The background thread will quit once it

lock.acquire(waitflag=1, timeout=-1) Without any optional argument, this method acquires the lock unconditionally, if necessary

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

get_nowait() Equivalent to get(False).

Queue.empty() Return True if the queue is empty, False otherwise. If empty() returns True

release() Release a lock. This can be called from any thread, not only the thread which has acquired the lock.

concurrent.futures.wait(fs, timeout=None, return_when=ALL_COMPLETED) Wait for the Future instances (possibly created