def get_os_info():
	if os.name == 'nt':
		win_version = {
			(1, 4, 0): '95',
			(1, 4, 10): '98',
			(1, 4, 90): 'ME',
			(2, 4, 0): 'NT',
			(2, 5, 0): '2000',
			(2, 5, 1): 'XP'
		}[	os.sys.getwindowsversion()[3],
			os.sys.getwindowsversion()[0],
			os.sys.getwindowsversion()[1] ]
		return 'Windows' + ' ' + win_version