Update app.py

app.py

@@ -2,7 +2,7 @@ import base64
 import io
 import os
 import zipfile
-from dash import Dash, dcc, html, Input, Output, State
+from dash import Dash, dcc, html, Input, Output, State, callback_context
 import dash_bootstrap_components as dbc
 from docx import Document
 import markdown
@@ -62,7 +62,7 @@ def process_docx(contents, filename):
      State('upload-data', 'filename')]
 )
 def update_output(list_of_contents, list_of_names, n_clicks, contents, filenames):
-    ctx = dash.callback_context
+    ctx = callback_context
     if not ctx.triggered:
         return dash.no_update