fix filename

app.py

@@ -26,10 +26,11 @@ if uploaded_file is not None:
     client.process("processFulltextDocument",
                    "./uploads/",
                    n=20)
-    output_file = os.path.splitext(file_path)[0] + ".grobid.tei.xml"
+                   
+    output_file_path = os.path.splitext(saved_file_path)[0] + ".grobid.tei.xml"
     
     monkeyReader = reader.MonkeyReader('monkey')
-    outline = monkeyReader.readOutline(output_file)
+    outline = monkeyReader.readOutline(output_file_path)
     
     for pre, fill, node in outline:
         st.write("%s%s" % (pre, node.name))