Update app.py

app.py

@@ -59,8 +59,10 @@ if upload_file is not None:
     try:
         if file_extension == 'csv':
             df_original = pd.read_csv(upload_file, na_filter=False)
+            df_original.drop_duplicates(inplace = True)
         elif file_extension == 'xlsx':
             df_original = pd.read_excel(upload_file, na_filter=False)
+            df_original.drop_duplicates(inplace = True)
         else:
             st.warning("Unsupported file type.")
             st.stop()