# Login Interface code in Python
# defining the login function
def login():
username = input("Enter your username: ")
password = input("Enter your password: ")
# here, you would typically run checks against a database or stored credentials to verify the username and password
# for simplicity sake, we're just going to hardcode the credentials here
if username == "user" and password == "password":
print("Login successful!")
else:
print("Invalid username or password. Please try again.")
login()
# running the login function
login()