plotly / plotly/plotly.py

Unable to access customdata using clickData [plotly>=6.0.0]

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bug P1 regression
Dominant language
Python
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Description

Upgrading from 5.24 to 6.0 results in the customdata prop missing when iterating over click/selected data of a go.Scatter trace. This happens within a Dash app callback with clickData and selectedData as inputs.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the Dash callback behavior described in the issue with a go.Scatter trace, clickData, and selectedData, comparing versions 5.24 and 6.0. Trace where customdata is lost during iteration; done when customdata is available in the callback data after upgrading to 6.0 or the regression is otherwise resolved.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
data-visualization
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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