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The interactive graphing library for Python :sparkles: This project now includes Plotly Express!

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While doing a course in statistics I came across the issue where numbers approaching 0 appear as letters instead of their numerical representation when using imshow for heatmaps. Such as...

bug
P3

The Plotly.py functions `fig.add_vline()`, `fig.add_hline()`, `fig.add_hrect()`, `fig.add_vrect()` accept arguments such as `annotation_text` which are used to create a label for the shape. This is done by creating and adding two...

feature
P2

I posted this on the [plotly community forum](https://community.plotly.com/t/plots-from-colab-dont-show-in-nbviewer/93179) but so far got no traction so I'm reporting this here. - **What I did:** - Created this [Colab notebook](https://colab.research.google.com/github/mklilley/test/blob/main/Plotly-colab-nbviewer.ipynb) with a...

bug
P3

Currently displaying plotly using a streamlit application in Python and want the user to be able to rotate and move a 3D Scatter plot to a desired camera position before...

feature
P3

This is a proposal fix for issue #5136 I first reproduced the issue and created two unit tests, `test_add_hline_empty_subplots.py` and `test_hline_subplots_bug.py`, that check if the bug is resolved. Then I...

P1
community
fix

> Example: import pandas as pd import plotly.express as px data = { 'Category': ['A', 'B', 'A', 'A', 'B', 'A'], 'Date': ['2025-10-11', '2025-10-11', '2025-10-12', '2025-10-13', '2025-10-13', '2025-10-13'], 'Value': [10, 15,...

### Minimal working example: ```python import plotly.graph_objects as go z = [ [1, None, 30, 50, 1], [20, 1, 60, 80, 30], [30, 60, 1, -10, 20] ] x =...

We (@janosh) are trying to generate a Sankey diagram but for some reason the explicit coordinates are not fully respected. The "right_a" node has a coordinate of `(0.9, 0.05)` (top...

bug
P3

### Description I found that when using `legend.maxheight` in Plotly (>= 6.3), it works as expected when rendering via browser (e.g. `fig.show(renderer="browser")` or `write_html`). However, when using Jupyter Notebook (or...

bug
P2

The docstring of `choropleth_map` states that `locations` are to be "interpreted according to `locationmode`" (as with other mapping functions), but this parameter seems to be missing from the signature of...