ctypes.memmove(dst, src, count) Same as the standard C memmove library function: copies count bytes from src

class io.IOBase The abstract base class for all I/O classes, acting on streams of bytes. There is no public constructor.

os.spawnv(mode, path, args) os.spawnve(mode, path, args, env) os.spawnvp(mode, file, args)

os.wait3(options) Similar to waitpid(), except no process id argument is given and a 3-element tuple containing

os.pipe() Create a pipe. Return a pair of file descriptors (r, w) usable for reading and writing, respectively

os.setpgid(pid, pgrp) Call the system call setpgid() to set the process group id of the process with id pid

os.WIFEXITED(status) Return True if the process exited using the exit(2) system call,

getvalue() Return a str containing the entire contents of the buffer. Newlines are decoded as if by read()

st_mtime_ns Time of most recent content modification expressed in nanoseconds as an integer.

flush() Flush the write buffers of the stream if applicable. This does nothing for read-only and non-blocking streams.