os.dup(fd) Return a duplicate of file descriptor fd. The new file descriptor is non-inheritable.

curses.use_default_colors() Allow use of default values for colors on terminals supporting this feature. Use this to support

curses.ascii.ismeta(c) Checks for a non-ASCII character (ordinal values 0x80 and above).

ctypes.create_string_buffer(init_or_size, size=None) This function creates a mutable character buffer. The returned object is

os._exit(n) Exit the process with status n, without calling cleanup handlers, flushing stdio buffers, etc.

os.fsync(fd) Force write of file with filedescriptor fd to disk. On Unix, this calls the native fsync()

os.geteuid() Return the current process’s effective user id. Availability: Unix.

os.pathconf(path, name) Return system configuration information relevant to a named file. name specifies the configuration

ctypes.pointer(obj) This function creates a new pointer instance, pointing to obj. The returned object is of the type

class os.DirEntry Object yielded by scandir() to expose the file path and other file attributes of a directory