plotly / plotly/plotly.py

some columns do not appear in hover if using labels overrides already used common names in Plotly Express

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bug P3
Dominant language
Python
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Description

Should we raise a warning or an error in the following case (which is very contrived of course)

import plotly.express as px
df = px.data.tips()
fig = px.scatter(df, x='tip', y='total_bill', color='day', facet_col='sex',
                 labels={'tip':'sex', 'day':'sex'})
fig.show()

in this case, in the hover only the value corresponding to x='tip' appears.

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First steps

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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 running the Plotly Express scatter example in the issue and inspect how the labels mapping affects hover fields. Determine whether conflicting labels should produce a warning or an error, then add coverage for the demonstrated case once the expected behavior is decided.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
data-visualization
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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