Update app.py

app.py

@@ -33,24 +33,9 @@ if "incorrect_count" not in st.session_state:
 st.sidebar.header("Practice Topic")
 st.session_state.topic = st.sidebar.selectbox(
     "Select a topic:",
-    [
-        "Machine Learning",
-        "Data Structures",
-        "Python",
-        "Generative AI",
-        "Computer Vision",
-        "Deep Learning",
-    ],
-    index=[
-        "Machine Learning",
-        "Data Structures",
-        "Python",
-        "Generative AI",
-        "Computer Vision",
-        "Deep Learning",
-    ].index(st.session_state.topic)
+    ["Machine Learning","Data Structures","Python","Generative AI","Computer Vision","Deep Learning"],
+    index=["Machine Learning","Data Structures","Python","Generative AI","Computer Vision","Deep Learning"].index(st.session_state.topic)
 )
-
 st.sidebar.markdown("---")
 st.sidebar.header("Your Score")
 st.sidebar.markdown(f"**Total:** {len(st.session_state.questions)}")
@@ -58,8 +43,7 @@ st.sidebar.markdown(f"**Correct:** {st.session_state.correct_count}")
 st.sidebar.markdown(f"**Incorrect:** {st.session_state.incorrect_count}")
 st.sidebar.markdown(f"**Points:** {st.session_state.score}")
 
-# Function to fetch an MCQ question
-
+# Function to fetch an MCQ question with debug logging
 def fetch_question(topic):
     prompt = {
         "role": "system",
@@ -74,16 +58,27 @@ def fetch_question(topic):
             messages=[prompt]
         )
         content = response.choices[0].message["content"].strip()
+        # Debug: show raw response
+        st.write("**[DEBUG] Raw response:**")
+        st.code(content)
         data = json.loads(content)
     except Exception as e:
         st.error(f"Failed to fetch or parse question: {e}")
+        # If content exists, display it for debugging
+        try:
+            st.write("**[DEBUG] Last content before error:**")
+            st.code(content)
+        except Exception:
+            pass
         return None
     # Validate structure
     question = data.get("question")
     options = data.get("options")
     correct_index = data.get("correct_index")
     if not question or not isinstance(options, list) or correct_index is None:
-        st.error(f"Invalid question structure. Response: {content}")
+        st.error("Invalid question structure.")
+        st.write("**[DEBUG] Parsed JSON:**")
+        st.json(data)
         return None
     return {"question": question, "options": options, "correct_index": correct_index}
 
@@ -103,8 +98,6 @@ else:
 for idx, q in enumerate(st.session_state.questions):
     st.markdown(f"### Question {idx+1}")
     st.write(q["question"])
-
-    # Radio options
     opts = q["options"]
     sel = st.radio(
         "Choose an answer:",
@@ -115,8 +108,6 @@ for idx, q in enumerate(st.session_state.questions):
         disabled=q["submitted"]
     )
     st.session_state.questions[idx]["selected"] = sel
-
-    # Submit answer
     if not q["submitted"]:
         if st.button("Submit Answer", key=f"submit_{idx}"):
             st.session_state.questions[idx]["submitted"] = True
@@ -128,7 +119,6 @@ for idx, q in enumerate(st.session_state.questions):
                 st.error(f"Incorrect! Correct: {opts[q['correct_index']]} (-10 points)")
                 st.session_state.score -= 10
                 st.session_state.incorrect_count += 1
-
 # Footer
 st.markdown("---")
 st.markdown("*Correct: +10 pts | Incorrect: -10 pts*")