Login Authentication

Simulate a simple login system by comparing username and password with stored values.

PythonBeginner

Python

# Simple login authentication

USERNAME = "admin"
PASSWORD = "secret123"

username = input("Enter username: ")
password = input("Enter password: ")

if username == USERNAME and password == PASSWORD:
    print("Login successful")
else:
    print("Invalid username or password")

Output

Enter username: admin
Enter password: secret123
Login successful

We store expected credentials in constants and compare user input against them. Both username and password must match for login to succeed.

Bill Discount System

Validate Password Strength