Mouse and keyboard operation in windows using python

import win32api,win32con

#鼠标定位到(500,500)
win32api.SetCursorPos([500,500])
#执行左单键击，若需要双击则延时几毫秒再点击一次即可
win32api.mouse_event(win32con.MOUSEEVENTF_LEFTUP | win32con.MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0)
#右键单击
win32api.mouse_event(win32con.MOUSEEVENTF_RIGHTUP | win32con.MOUSEEVENTF_RIGHTDOWN, 0, 0, 0, 0)

import time, threading, copy

import sys
import win32api, win32con

SCAN_TIME = 1.0 / 50
KEY_VALUE_LIST = {
'left': 37, 'up': 38,
'right': 39, 'down': 40, }

class keyboard(object):
__keyList = set()
def __init__(self):
self.mainThread = threading.Thread(target=self.__main_thread_fn)
self.mainThread.setDaemon(True)
self.mainThread.start()
def __main_thread_fn(self):
while 1:
for keyValue in copy.copy(self.__keyList):
win32api.keybd_event(keyValue, 0, 0, 0)
time.sleep(SCAN_TIME)
def __get_key_value(self, key):
if key.isdigit() and 0 <= int(key) <= 9:
return int(key)
elif len(key) == 1 and 65 <= ord(key.upper()) <= 90:
return ord(key.upper())
elif key in KEY_VALUE_LIST.keys():
return KEY_VALUE_LIST[key]
def key_down(self, key):
keyValue = self.__get_key_value(key)
if keyValue is None: return False
self.__keyList.add(keyValue)
return True
def key_up(self, key):
keyValue = self.__get_key_value(key)
if keyValue is None: return False
if keyValue in self.__keyList: self.__keyList.remove(keyValue)
return True

if __name__ == '__main__':
kb = keyboard()
time.sleep(20)
kb.key_down('b')
time.sleep(20)
kb.key_up('b')
try:
sys.stdin.read()
except:
print('Finish')