nevermind, it's concat

app.py

@@ -33,7 +33,7 @@ def get_all_plots():
         params_df= params_df.rename(columns={"Link": "model"})
         tasks_df = pd.merge(task_df, params_df, on='model')
         all_df = pd.DataFrame(columns = tasks_df.columns)
-        all_df.append(tasks_df)
+        all_df = pd.concat([all_df, tasks_df], ignore_index=True)
     all_df['Total GPU Energy (Wh)'] = all_df['total_gpu_energy']*1000
     all_df = all_df.sort_values(by=['Total GPU Energy (Wh)'])
     all_df['parameters'] = all_df['parameters'].apply(format_params)
@@ -73,7 +73,7 @@ def get_all_model_names():
         task_df= task_df.rename(columns={"Link": "model"})
         tasks_df = pd.merge(task_df, energy_df, on='model')
         all_df = pd.DataFrame(columns = tasks_df.columns)
-        all_df.append(tasks_df)
+        all_df = pd.concat([all_df, tasks_df], ignore_index=True)
     all_df=all_df.drop_duplicates(subset=['model'])
     all_df['Parameters'] = all_df['parameters'].apply(format_params)
     all_df['Model'] = all_df['model'].apply(make_link)