Update app.py

app.py

@@ -93,7 +93,7 @@ with col1:
             
             uploaded_file = st.file_uploader("Choose a file-(one sentence per line)")
             if uploaded_file is not None:
-                
+                warnings = []
                 stringio = StringIO(uploaded_file.getvalue().decode("utf-8"))
                 string_data = stringio.read()