Create app.py

app.py

@@ -0,0 +1,52 @@
+import random
+
+class ChatBot:
+    def __init__(self, name="PyBot"):
+        self.name = name
+        self.memory = {}
+        self.responses = {
+            "greeting": [
+                "Hey there! 👋",
+                "Hello, how’s your day going?",
+                "Hi! What’s on your mind?"
+            ],
+            "farewell": [
+                "Goodbye 👋",
+                "Catch you later!",
+                "See you soon!"
+            ],
+            "default": [
+                "Interesting… tell me more.",
+                "Hmm, I see. Go on.",
+                "That’s something to think about."
+            ]
+        }
+
+    def understand(self, user_input):
+        """Simple NLP-style intent recognition"""
+        text = user_input.lower()
+        if any(word in text for word in ["hi", "hello", "hey"]):
+            return "greeting"
+        elif any(word in text for word in ["bye", "goodnight", "see you"]):
+            return "farewell"
+        else:
+            return "default"
+
+    def respond(self, user_input):
+        intent = self.understand(user_input)
+        return random.choice(self.responses[intent])
+
+    def chat(self):
+        print(f"{self.name}: Hi! I'm {self.name}. Type 'quit' to end.")
+        while True:
+            user_input = input("You: ")
+            if user_input.lower() in ["quit", "exit"]:
+                print(f"{self.name}: It was nice chatting with you. Bye!")
+                break
+            reply = self.respond(user_input)
+            print(f"{self.name}: {reply}")
+
+
+if __name__ == "__main__":
+    bot = ChatBot("Sophia")
+    bot.chat()