Update app.py

app.py

@@ -169,27 +169,26 @@ def main():
     if 'results' not in st.session_state:
         st.session_state.results = []
 
-
-    # File uploader for new essays to be graded (DOCX)
-    pdf_file = st.file_uploader("Upload proposal to be graded", type=["pdf"])
-    new_file = read_pdf(pdf_file)
-    # Grading button
-    if st.button("Grade Proposal"):
-        if new_file:
-            result = grade_essay(input = new_file)
-            # Store results in session state
-            st.session_state.results.append({
-                # 'Essay File': new_file,
-                'Feedback': result,
-            })
-
-            # Display the grading feedback
-            st.write("Feedback:")
-            st.write(result)
-
-            st.success("Grading completed for uploaded proposal.")
-        else:
-            st.error("Please upload a proposal in pdf")
+    if pdf_file is not None:
+        # File uploader for new essays to be graded (DOCX)
+        pdf_file = st.file_uploader("Upload proposal to be graded", type=["pdf"])
+        new_file = read_pdf(pdf_file)
+        # Grading button
+        if st.button("Grade Proposal"):
+            if new_file:
+                result = grade_essay(input = new_file)
+                # Store results in session state
+                st.session_state.results.append({
+                    'Feedback': result
+                })
+    
+                # Display the grading feedback
+                st.write("Feedback:")
+                st.write(result)
+    
+                st.success("Grading completed for uploaded proposal.")
+            else:
+                st.error("Please upload a proposal in pdf")
 
 
 if __name__ == "__main__":