如何存储用户名和密码并能够在python中添加它们？

Question

我试图通过将用户名存储在一个列表中并将密码存储在一个列表中来编写用户名和密码脚本。你知道吗

我已经尽我所能在网上做了研究。 这是我的密码。你知道吗

user_list = ["Mineman","NeonDerp","Memes"]
global user_list
Mineman_password = "RG"
Neonderp_password = "05"
Memes_password = "DOge"
passwords_list = [str(Mineman_password),str(Neonderp_password),str (Memes_password)]
global password_list
logsin = input("Login or sign up")
logsin = logsin.lower()
if logsin == "login" :
def user_name():

    username = input("Username")
    if username in users_list :
        pass
    else:
        print("No matching users")

def pass_word():
    password = user_password
    Intpw = input("Password")
    if intpw == password :
        print("Logged in")
    else:
        print("WRONG")

else:
    adduser = input("What would you like as your user namename to be")
    if adduser in users_set :
    print("Username already taken")
else:
    users.add(adduser)
    addpw = input("What would you like your password to be")
    passwords.add(addpw)