username pass 1
usereman ssap 2
nameuser psap 1

def login():
print("nYou're in login section")
username = input("Username: ")
password = input("Password: ")
for line in open("users.txt", "r").readlines():
    login_info = line.split()
    if username == login_info[0] and password == login_info[1]:
        if login_info[2] == 1:
            print("Dear customer, I'll take you to the marketplace.")
            return True
        elif login_info[2] == 2:
            print("Welcome manager!")
            return True
        else:
            print("Authority level is other than 1 or 2. Fix it!")
            welcome()