matplotlib issue question

[anielsen001]

I'm trying a very simple example with matplotlib to make a plot in the pyodide environment. TL;DR, I get this error with matplotlib:

cannot import name 'maxdict' from 'matplotlib.cbook' (/lib/python3.12/site-packages/matplotlib/cbook.py)

Here's more detail about what I did.

I wrote a qmd file with the following content and ran it with quarto preview:

---
title: "test quarto live"
format: live-html
---

The embedded code must run from a server, not an html file, so use `quarto preview`

This is a Quarto website testing the https://github.com/r-wasm/quarto-live extension.

To learn more about Quarto websites visit <https://quarto.org/docs/websites>.


```{pyodide}
import matplotlib.pyplot as plt
import matplotlib
print(matplotlib.__version__)

fig, ax = plt.subplots()
#ax.plot([1,3,2])

```

Here's a screenshot of the output I get:

I installed quarto-live with

quarto add r-wasm/quarto-live

The _extension.yml file says version 0.2.1-dev

Here's the output of quarto check

Quarto 1.6.37
[✓] Checking environment information...
      Quarto cache location: /home/apn/.cache/quarto
[✓] Checking versions of quarto binary dependencies...
      Pandoc version 3.4.0: OK
      Dart Sass version 1.70.0: OK
      Deno version 1.46.3: OK
      Typst version 0.11.0: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
      Version: 1.6.37
      Path: /opt/quarto/bin

[✓] Checking tools....................OK
      TinyTeX: (not installed)
      Chromium: (not installed)

[✓] Checking LaTeX....................OK
      Using: Installation From Path
      Path: /usr/bin
      Version: 2019

[✓] Checking basic markdown render....OK

[✓] Checking Python 3 installation....OK
      Version: 3.8.3
      Path: /home/apn/sw/bin/python3
      Jupyter: 4.10.0
      Kernels: julia-1.8, python3

(\) Checking Jupyter engine render....[IPKernelApp] ERROR | No such comm target registered: quarto_kernel_setup
[✓] Checking Jupyter engine render....OK

[✓] Checking R installation...........OK
      Version: 4.4.1
      Path: /usr/lib/R
      LibPaths:
        - /usr/local/lib/R/site-library
        - /usr/lib/R/site-library
        - /usr/lib/R/library
      knitr: (None)
      rmarkdown: (None)

      The knitr package is not available in this R installation.
      Install with install.packages("knitr")
      The rmarkdown package is not available in this R installation.
      Install with install.packages("rmarkdown")

the matplotlib version installed with pyodide and quarto-live appears to be 3.8.4. This issue with matplotlib indicates that maxdict was deprecated and removed with Matplotlib v 3.6, so this sounds like a versioning issue, but I'm completely new to quarto-live and pyodide and don't know much about how to debug anything,and I don't know how versioning is managed, so this may be an upsteam issue with pyodide.

[harfel]

The issue even occurs on https://r-wasm.github.io/quarto-live/getting_started/plotting.html when running the python code snippets.

[georgestagg]

Thank you for reporting this! Recently the version of Pyodide used by Quarto Live was updated, and its internal matplotlib OffscreenCanvas renderer required updating for the latest version of matplotlib bundled with Pyodide.

I've made the required changes, and things should hopefully be working again as of the latest commit of Quarto Live. You will need to reinstall the extension into your Quarto project to get the latest version.

[anielsen001]

thank you for the quick update! I reinstalled the extension and it's working as expected.