#!/usr/bin/env python3.0

import os
import pty

for pipe_func, name in ((os.pipe, 'os.pipe'), (pty.openpty, 'pty.openpty')):

    master_fd, slave_fd = pipe_func()
    master_file = os.fdopen(master_fd, 'rb')

    # Simulate a subprocess writing some data to the
    # slave end of the pipe, and then exiting.
    data = ('%s: success' % name).encode()
    os.write(slave_fd, data)
    os.close(slave_fd)

    gotdata = master_file.read(len(data) + 1)
    print(gotdata)

    master_file.close()