send from directory

flask_boat.py

@@ -93,7 +93,7 @@ def set_base_url():
 # Homepage
 @app.route(f"/{base_url}/")
 def home_page():
-    return send_from_directory(f'{app.root_path}/render.html')
+    return send_from_directory(app.root_path, 'render.html')
 
 
 # For generic pages we can include a common template and change only the contents