Update app.py

app.py

@@ -48,7 +48,7 @@ with col2:
     wc_list = ['E_Text', 'S_Text', 'G_Text']
 
     for x in wc_list:
-        row = df_selected_cik.loc[selected_year.astype(string)]
+        row = df_selected_cik.loc[selected_year.astype(str)]
         text = row.loc[x]
         text = re.sub(r'[^A-Za-z\s]', '', text)    
         text = text.lower()