How to make a simple password generator using python

import random

lower = "abcdefghijklmnopqrstuvwxyz"

upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

number = "123456789"

symbol = "(){}[]#!£$%,.<>:';#"

all=lower+upper+number+symbol

length = 9

password = "".join(random.sample(all,length))

print("your new password is:"+password)