Create app.py

app.py

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+import streamlit as st
+import random
+import re
+
+# Page config
+st.set_page_config(
+    page_title="Nepali Chatbot",
+    page_icon="🇳🇵"
+)
+
+# Simple responses
+nepali_greetings = ["नमस्ते! कस्तो छ?", "नमस्कार! राम्रो छु।", "हाल कस्तो छ?"]
+english_greetings = ["Hello! How are you?", "Hi there!", "Hey! How's it going?"]
+
+nepali_responses = [
+    "त्यो राम्रो छ!", 
+    "बुझें। अरू के भन्न चाहनुहुन्छ?",
+    "धन्यवाद साझा गर्नुभएकोमा!",
+    "त्यो दिलचस्प छ!"
+]
+
+english_responses = [
+    "That's great!",
+    "I understand. What else would you like to say?",
+    "Thanks for sharing!",
+    "That's interesting!"
+]
+
+def is_nepali(text):
+    return bool(re.search(r'[\u0900-\u097F]', text))
+
+def get_response(message):
+    if not message:
+        return "Please say something!"
+    
+    message_lower = message.lower()
+    
+    # Check for greetings
+    if any(word in message_lower for word in ["hello", "hi", "hey"]) or "नमस्ते" in message or "नमस्कार" in message:
+        return random.choice(nepali_greetings if is_nepali(message) else english_greetings)
+    
+    # Regular responses
+    if is_nepali(message):
+        return random.choice(nepali_responses)
+    else:
+        return random.choice(english_responses)
+
+# Title
+st.title("🇳🇵 Simple Nepali Chatbot")
+st.write("**Chat in Nepali or English! / नेपाली वा अंग्रेजीमा कुरा गर्नुहोस्!**")
+
+# Initialize chat history
+if "messages" not in st.session_state:
+    st.session_state.messages = []
+
+# Display chat messages
+for message in st.session_state.messages:
+    with st.chat_message(message["role"]):
+        st.write(message["content"])
+
+# Chat input
+if prompt := st.chat_input("Type here... / यहाँ लेख्नुहोस्..."):
+    # Add user message
+    st.session_state.messages.append({"role": "user", "content": prompt})
+    with st.chat_message("user"):
+        st.write(prompt)
+
+    # Generate response
+    response = get_response(prompt)
+    st.session_state.messages.append({"role": "assistant", "content": response})
+    with st.chat_message("assistant"):
+        st.write(response)
+
+# Sidebar with examples
+with st.sidebar:
+    st.header("Examples / उदाहरण")
+    
+    if st.button("नमस्ते!"):
+        st.session_state.messages.append({"role": "user", "content": "नमस्ते!"})
+        st.session_state.messages.append({"role": "assistant", "content": get_response("नमस्ते!")})
+        st.rerun()
+    
+    if st.button("Hello!"):
+        st.session_state.messages.append({"role": "user", "content": "Hello!"})
+        st.session_state.messages.append({"role": "assistant", "content": get_response("Hello!")})
+        st.rerun()
+    
+    if st.button("Clear / सफा गर्नुहोस्"):
+        st.session_state.messages = []
+        st.rerun()