Update app.py

app.py

@@ -1,39 +1,56 @@
+# We are importing three things we need:
+# 1. gradio - to make a simple website interface
+# 2. requests - to talk to Gemini API on the internet
+# 3. os - to get our secret API key safely
 import gradio as gr
 import requests
 import os
 
-# Securely get the API key from Hugging Face secrets
+# We get our secret Gemini API key from the environment.
+# This is like unlocking the door so we can talk to the Gemini robot.
 GEMINI_API_KEY = os.getenv("GEMINI_API_KEY")
 
+# This function sends your question (prompt) to Gemini and gets an answer back
 def query_gemini(prompt):
+    # This is the website link (URL) where we send our question
     url = f"https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent?key={GEMINI_API_KEY}"
+
+    # We tell the Gemini robot that we are sending text in JSON format
     headers = {
         "Content-Type": "application/json"
     }
+
+    # We put our prompt (question) inside a special box (dictionary)
     data = {
         "contents": [
             {
                 "parts": [
-                    {"text": prompt}
+                    {"text": prompt}  # This is the question the user types
                 ]
             }
         ]
     }
 
+    # We send the data to Gemini using a POST request
     response = requests.post(url, headers=headers, json=data)
 
+    # Now we try to get the answer from Gemini’s reply
     try:
+        # Gemini replies with some candidates, and we take the first answer
         return response.json()['candidates'][0]['content']['parts'][0]['text']
     except Exception as e:
+        # If something goes wrong, we show an error
         return f"Error: {e}\nFull Response: {response.text}"
 
+# Here we build the user interface using Gradio
 iface = gr.Interface(
-    fn=query_gemini,
-    inputs=gr.Textbox(lines=4, placeholder="Ask something..."),
-    outputs="text",
-    title="Gemini 2.0 Flash with Gradio",
-    description="Powered by Google's Gemini 2.0 Flash API"
+    fn=query_gemini,  # This is the function we call when the user asks something
+    inputs=gr.Textbox(lines=4, placeholder="Ask something..."),  # Textbox for input
+    outputs="text",  # The answer will be shown as plain text
+    title="Gemini 2.0 Flash with Gradio",  # Title of the web app
+    description="Powered by Google's Gemini 2.0 Flash API"  # A short description
 )
 
+# This line says: "Run the app" if you run this file directly
 if __name__ == "__main__":
     iface.launch()