returncode Return code of the process when it exited. A None value indicates that the process has not terminated

select.kevent(ident, filter=KQ_FILTER_READ, flags=KQ_EV_ADD, fflags=0, data=0, udata=0) (Only supported on BSD.) Returns a kernel

fileno() This returns the file descriptor used by the underlying

coroutine AbstractEventLoop.sock_sendall(sock, data) Send data to the socket. Modeled after blocking

coroutine read(n=-1) Read up to n bytes. If n is not provided, or set to -1, read until EOF and

put_nowait(item) Put an item into the queue without blocking. If no free slot is immediately

exception select.error A deprecated alias of

get_extra_info(name, default=None) Return optional transport information. name is a string representing the piece of

class selectors.BaseSelector A BaseSelector is used to wait for I/O event readiness on multiple file objects. It

AbstractEventLoop.close() Close the event loop. The loop must not be running. Pending callbacks will be lost.