python生成随机密码或随机字符串的方法

import string,random 
def makePassword(minlength=5,maxlength=25): 
 length=random.randint(minlength,maxlength) 
 letters=string.ascii_letters+string.digits
 # alphanumeric, upper and lowercase 
 return ''.join([random.choice(letters) for _ in range(length)])