Unrenderable violin plot
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- Dominant language
- Python
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Description
I have some example input here and a script for creating a violin plot. The plot writes without error but appears unrenderable, it never displays and will e.g., cause notebooks to crash.
Python 3.13.5
plotly 6.0.1
pandas 2.2.3
import pandas as pd
import plotly.express as px
from plotly.graph_objects import Figure
def create_plot(df: pd.DataFrame) -> Figure:
fig = px.violin(
df,
color='sample',
color_discrete_sequence=px.colors.qualitative.Safe,
y='value',
x='sample',
points=False,
box=True,
facet_col='metric',
facet_col_wrap=1,
)
fig.update_yaxes(matches=None)
fig.update_xaxes(matches=None)
fig.update_layout(height=400 * len(df['metric'].unique()))
return fig
if __name__ == '__main__':
file = 'df_melted.csv'
df = pd.read_csv(file)
fig = create_plot(df)
fig.write_html('test_plot.html')
Example input file is attached. The input is admittedly unusual for a violin plot (essentially all 0s or all 1s).
Thanks in advance!
Contributor guide
First steps
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- Open a pull request that references the issue number.
Research direction
Start by running the provided Python script with the attached df_melted.csv under Python 3.13.5, then inspect test_plot.html and reproduce the notebook crash. Trace the violin plot rendering path for this input; done means the generated HTML renders and the same figure no longer crashes notebooks.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- pandas, plotly, python
- Domain
- data-visualization
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 52/100