Build a Basic Chatbot with Python (rule-based)
Level: Beginner
Project Description
Your task for today is to build a basic chatbot in Python — one that replies to user input based on a set of predefined rules.
This chatbot will be rule-based, meaning it doesn't use AI or machine learning, but simply looks at what the user types and responds accordingly. While this may sound simple, it's exactly how many early bots worked — and it's a great way to understand how natural language processing starts.
Your chatbot should run in a loop and continue interacting with the user until the user types "bye". For example, if the user says "hello", the bot can respond with "Hello there!", and for "how are you", it might say "I'm just code, but thanks for asking!". If the user types something it doesn't recognize, the bot can reply with a default response like "Sorry, I don't understand that."
This kind of chatbot can be extended later into more advanced bots, but it's also useful on its own for:
Creating command-line helpers
Adding interactivity to games or apps
Practicing basic logic and string handling in Python
Building a conversational UI for very specific tasks (like customer service FAQs)
Expected Output
Here’s what a short conversation with your chatbot might look like:
💡 Hint
Don’t know where to start? This hint will show you how to begin.
𝌣 Solution
🔒 This solution is available to paid subscribers only.
Hiii there its my solution :
print("Hi! I'm ChatBot. Type 'Bye' to exit.")
while True:
chatbot = "ChatBot:"
user_input = input("You: ")
match user_input.lower().strip():
case 'hello':
print(f"{chatbot} Hello there!")
case 'how are you':
print(f"{chatbot} I'm just a code, but thanks for asking")
case 'bye':
print(f"{chatbot} Goodbye!")
break
case _:
print(f"{chatbot} Sorry, I don't understand that.")