python随机生成一个简单的密码代码详解编程语言

import random 
import sys 
  
def main(argv): 
  
    if (len(sys.argv) != 2): 
        sys.exit('Usage: simple_pass.py <password_length>') 
      
    password = '' 
    for i in range(int(argv[0])): 
        password += chr(random.randint(33,126)) 
      
    print 'You new password is: ' + password 
  
if __name__ == "__main__": 
    main(sys.argv[1:])