class io.BytesIO([initial_bytes]) A stream implementation using an in-memory bytes buffer. It inherits BufferedIOBase

window.insch(ch[, attr]) window.insch(y, x, ch[, attr]) Paint character ch at (y, x) with

os.getpgrp() Return the id of the current process group. Availability: Unix.

class ctypes.Array(*args) Abstract base class for arrays. The recommended way to create concrete

write(b) Write the given bytes-like object, b, and return the number of bytes

os.sched_setparam(pid, param) Set a scheduling parameters for the process with PID pid. A pid of 0 means the

os.putenv(key, value) Set the environment variable named key to the string value. Such changes to the environment

os.getppid() Return the parent’s process id. When the parent process has exited, on Unix the id returned is the one of the init

os.makedirs(name, mode=0o777, exist_ok=False) Recursive directory creation function. Like mkdir(), but makes all

time.clock() On Unix, return the current processor time as a floating point number expressed in seconds. The precision, and