Update app.py

app.py

@@ -253,7 +253,7 @@ def keyphrase_generator(article_link, model_1, model_2, max_num_keywords, model_
   sorted_dict = {'Title': sorted_titles, 'Abstract': sorted_abstract_list}
   df_new=pd.DataFrame(dict([ (k,pd.Series(v)) for k,v in sorted_dict.items() ]))  
   df_final = df_new.fillna(' ')
-  fp = df_final_to_csv('title_abstract.csv', index=False)
+  fp = df_final.to_csv('title_abstract.csv', index=False)
   
 
 #############################################    Ends here    ####################################################