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Description
Describe your context
Please provide us your environment, so we can easily reproduce the issue.
- replace the result of
pip list | grep dash
below
dash 2.18.1 A Python framework ...
dash-bootstrap-components 1.6.0 Bootstrap themed co...
dash-core-components 2.0.0 Core component suit...
dash-html-components 2.0.0 Vanilla HTML compon...
dash-table 5.0.0 Dash table
Describe the bug
When registering a pattern-matching callback, no warning is issued if the pattern does not match the ID of any of the DOM elements.
For example if we create a button with an ID like this:
id={
"type": "delete-list-item",
"deletion-target": "some_path",
"extras": "..."
}
and then define a callback that only defines 2/3 of the keys present in the id
dict:
@app.callback(
Input(
{"type": "delete-list-item", "deletion-target": "some_path", }, "n_clicks"
),
)
def delete_list_item(n_clicks):
print(n_clicks)
The callback does not get attached to any element but does show up on the dev tools page.
Expected behavior
Under the default conditions (app.config.suppress_callback_exceptions = False
), a warning should be emitted when no matching id
s are found.
Screenshots
Not needed
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