class User:
    def __init__(self, n, u, p):
        self.name = n
        self.uname = u
        self.password = p

    def Display(self):
        print("Name: " + self.name)

        print("Uname: " + str(self.uname))
        print("Password: " + self.password)


class Users:
    def __init__(self):
        self.users = []
    def add_user(self, x):
        self.users.append(x)

    def find_user(self,name):
        for i in range (len(self.users)):
            if self.users[i].name == name:
                return self.users[i]
        return None
    def del_user(self,x):
        i = 0
        n = len(self.users)
        while i<n:
            if self.users[i] == x:
                self.users.__delitem__(i)
                n-=1
            else:
                i+=1

    def Display(self):
        print("Все юзеры:")
        for i in range(len(self.users)):
            self.users[i].Display()
            print()




u1 = User("a","a","a")
u2 = User("b","b","b")

usrs = Users()

usrs.add_user(u1)
usrs.add_user(u2)

usrs.Display()

u = usrs.find_user("a")
if u != None:
    print("пользователь найден")
    u.Display()
else:
    print("пользователь не найден")

print()

u = usrs.find_user("c")
if u != None:
    print("пользователь найден")
    u.Display()
else:
    print("пользователь не найден")


usrs.del_user(u1)

usrs.Display()