Update app.py

app.py

@@ -226,6 +226,7 @@ def main():
                 time.sleep(0.5)
                 st.session_state.results = results
 
+    
     # Display Results
     if 'results' in st.session_state:
         st.subheader("📊 Analysis Results")
@@ -254,16 +255,19 @@ def main():
                         </div>
                     """, unsafe_allow_html=True)
 
-        # PDF Report Section
-            # Generate and download PDF report
-    pdf_report = generate_pdf_report(results)
-    with open(pdf_report, "rb") as f:
-        st.download_button(
-            label="Download PDF Report",
-            data=f,
-            file_name="requirements_report.pdf",
-            mime="application/pdf"
-        )
+    # Display result
+    # Generate and download PDF report only if results are present
+    if results:  # Check if results are not empty
+        pdf_report = generate_pdf_report(results)
+        with open(pdf_report, "rb") as f:
+            st.download_button(
+                label="Download PDF Report",
+                data=f,
+                file_name="requirements_report.pdf",
+                mime="application/pdf"
+            )
+    else:
+        st.warning("⚠️ No results to generate a PDF report.")
 
     st.markdown("---")
     st.markdown("""