console.py 文件源码

def get_terminal_width():
    """Borrowed from the py lib."""
    try:
        import termios
        import fcntl
        import struct
        call = fcntl.ioctl(0, termios.TIOCGWINSZ,
                           struct.pack('hhhh', 0, 0, 0, 0))
        height, width = struct.unpack('hhhh', call)[:2]
        terminal_width = width
    except (SystemExit, KeyboardInterrupt):
        raise
    except:
        # FALLBACK
        terminal_width = int(os.environ.get('COLUMNS', 80)) - 1
    return terminal_width