Update app.py

app.py

@@ -5,19 +5,19 @@ from google.genai import types
 from google.genai.types import GenerateContentConfig, GoogleSearch, Tool
 
 # =========================================================
-# Gemini Setup (FIXED)
+# Gemini Setup
 # =========================================================
 API_KEY = os.getenv("Gemini_API_Key")
 
 if not API_KEY:
     raise RuntimeError(
         "❌ Gemini_API_Key is not set. "
-        "Please add it in Hugging Face → Settings → Secrets."
+        "Add it in Hugging Face → Settings → Secrets."
     )
 
 client = genai.Client(api_key=API_KEY)
 
-# ✅ Use a VALID model
+# ✅ Valid model
 MODEL_ID = "gemini-2.0-flash"
 
 # =========================================================
@@ -46,12 +46,13 @@ custom_js = """
 """
 
 # =========================================================
-# AI Function (LOGICALLY CORRECT)
+# AI Function (BULLETPROOF)
 # =========================================================
 def google_search_query(question):
     try:
-        # Normalize input (important for Gradio + JS)
-        question =question
+        # 🔒 Bulletproof input normalization
+        question = "" if question is None else str(question)
+        question = question.strip()
 
         if question == "":
             return "Please type a question above 👆", ""
@@ -73,7 +74,6 @@ def google_search_query(question):
 
         ai_response = response.text or "No AI response generated."
 
-        # Safe grounding extraction
         search_results = ""
         if (
             response.candidates
@@ -101,7 +101,7 @@ with gr.Blocks(css=custom_css) as app:
     question = gr.Textbox(
         lines=2,
         label="Ask a Question",
-        placeholder="e.g. Types of security jobs"
+        placeholder="e.g. What are types of machine learning?"
     )
 
     search_btn = gr.Button("🔍 Search", elem_id="search-btn")
@@ -117,7 +117,7 @@ with gr.Blocks(css=custom_css) as app:
         js=custom_js
     )
 
-    # Enter key submit (always reliable)
+    # Enter key submit
     question.submit(
         fn=google_search_query,
         inputs=[question],