Python待分析的模块

fcntl 文件控制模块

http://docs.python.org/2.7/library/fcntl.html#module-fcntl

struct 二进制文本处理模块

http://docs.python.org/2.7/library/struct.html#module-struct

termios [POSIX calls for tty I/O control接口]

http://docs.python.org/2.7/library/termios.html#module-termios