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Add pyodide backend based on webagg #32148

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Add pyodide backend based on webagg
ianthomas23 Jul 31, 2026
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Added docs
ianthomas23 Jul 31, 2026
69ba2da
Linting
ianthomas23 Jul 31, 2026
42483ad
Update js linter versions
ianthomas23 Aug 11, 2026
f48a20e
Set default backend by putting it at top of backend search order
ianthomas23 Aug 11, 2026
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Don't break it with overzealous linting
ianthomas23 Aug 11, 2026
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Added docs
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@ianthomas23
ianthomas23 committed Aug 11, 2026
commit 4ded7c8a3c851b0fa1a2a33ac0725faba4af20bf
6 changes: 6 additions & 0 deletions doc/release/next_whats_new/pyodide_backend.rst
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Pyodide backend
---------------

The ``pyodide`` backend, which has been patched into pyodide builds of Matplotlib since
early 2025, is now included in the main Matplotlib repository.
It is an interactive backend based on ``webagg`` and is the default backend used on pyodide.
2 changes: 2 additions & 0 deletions galleries/users_explain/figure/backends.rst
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Expand Up @@ -199,6 +199,7 @@ GTK4Cairo Cairo rendering to a GTK_ 4.x canvas (requires PyGObject_ and
pycairo_).
wxAgg Agg rendering to a wxWidgets_ canvas (requires wxPython_ 4).
This backend can be activated in IPython with ``%matplotlib wx``.
pyodide Variant of WebAgg backend that is the default on Pyodide_.
========= ================================================================

.. note::
Expand All @@ -223,6 +224,7 @@ wxAgg Agg rendering to a wxWidgets_ canvas (requires wxPython_ 4).
.. _Tk: https://www.tcl.tk/
.. _wxWidgets: https://www.wxwidgets.org/
.. _ipympl: https://www.matplotlib.org/ipympl
.. _Pyodide: https://pyodide.org/

.. _ipympl_install:

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