Simple Login Program In Python |Beginner Level | line by line code expla...

complete code 



em = [] # for email
pa = [] # for password
na = []

def signup():
    name = input('Name')
    email = input('Email')
    password = input('password')
    em.append(email)
    print(em)
    pa.append(password)
    print(pa)
    na.append(name)
    display()

def login():
    email = input('email')
    password = input('password')
    for i in em:
        if i == email:
            for j in pa:
                if j == password:
                    print("you are successfully logged in ")
        break
    else:
        print('your email or password is wrong ')



def display():
    print('what do you want to do ')
    print('1.login')
    print('2.signup')
    inp = int(input('enter your choice:'))
    if inp  == 1:
        print('login')
        return login()
    elif inp == 2:
        print('signup')
        return signup()
    else:
        print('invalid input')
display()