Patch usage of maxdict with functools.lru_cache

packages/matplotlib-pyodide/meta.yaml

@@ -6,6 +6,8 @@ package:
 source:
   url: https://files.pythonhosted.org/packages/36/8e/f28cdc02d2eb5d9a711876c39be72701b09ec80ce9ea3a6b67a7f08d8212/matplotlib_pyodide-0.2.2-py3-none-any.whl
   sha256: 712a1bd8a06875393f25b0dc7a35cff1ecde2df36446d1290aaa846fd225a5df
+  patches:
+    - patches/0001-Replace-maxdict-with-lru_cache.patch  # remove with 0.2.3
 about:
   home: https://github.com/pyodide/matplotlib-pyodide
   PyPI: https://pypi.org/project/matplotlib-pyodide

packages/matplotlib-pyodide/patches/0001-Replace-maxdict-with-lru-cache.patch

@@ -0,0 +1,80 @@
+From 18cd638fb0b70078c0e6bedc4a98331ac7652f33 Mon Sep 17 00:00:00 2001
+From: Hood Chatham <roberthoodchatham@gmail.com>
+Date: Tue, 22 Oct 2024 14:27:43 +0200
+Subject: [PATCH 01/19] Replace maxdict with lru_cache (#52)
+
+Matplotlib removed maxdict:
+https://matplotlib.org/stable/api/prev_api_changes/api_changes_3.6.0.html#miscellaneous-internals
+---
+ matplotlib_pyodide/html5_canvas_backend.py | 30 +++++++++++-----------
+ 1 file changed, 15 insertions(+), 15 deletions(-)
+
+diff --git a/matplotlib_pyodide/html5_canvas_backend.py b/matplotlib_pyodide/html5_canvas_backend.py
+index 740e679..ac3afd5 100644
+--- a/matplotlib_pyodide/html5_canvas_backend.py
++++ b/matplotlib_pyodide/html5_canvas_backend.py
+@@ -1,6 +1,7 @@
+ import base64
+ import io
+ import math
++from functools import lru_cache
+
+ import numpy as np
+ from matplotlib import __version__, interactive
+@@ -10,7 +11,6 @@ from matplotlib.backend_bases import (
+     RendererBase,
+     _Backend,
+ )
+-from matplotlib.cbook import maxdict
+ from matplotlib.colors import colorConverter, rgb2hex
+ from matplotlib.font_manager import findfont
+ from matplotlib.ft2font import LOAD_NO_HINTING, FT2Font
+@@ -204,8 +204,8 @@ class RendererHTMLCanvas(RendererBase):
+         self.ctx.width = self.width
+         self.ctx.height = self.height
+         self.dpi = dpi
+-        self.fontd = maxdict(50)
+         self.mathtext_parser = MathTextParser("bitmap")
++        self._get_font_helper = lru_cache(maxsize=50)(self._get_font_helper)
+
+         # Keep the state of fontfaces that are loading
+         self.fonts_loading = {}
+@@ -309,22 +309,22 @@ class RendererHTMLCanvas(RendererBase):
+         pixels_proxy.destroy()
+         pixels_buf.release()
+
++    def _get_font_helper(self, prop):
++        """Cached font lookup
++
++        We wrap this in an lru-cache in the constructor.
++        """
++        fname = findfont(prop)
++        font = FT2Font(str(fname))
++        font_file_name = fname.rpartition("/")[-1]
++        return (font, font_file_name)
++
+     def _get_font(self, prop):
+-        key = hash(prop)
+-        font_value = self.fontd.get(key)
+-        if font_value is None:
+-            fname = findfont(prop)
+-            font_value = self.fontd.get(fname)
+-            if font_value is None:
+-                font = FT2Font(str(fname))
+-                font_file_name = fname[fname.rfind("/") + 1 :]
+-                font_value = font, font_file_name
+-                self.fontd[fname] = font_value
+-            self.fontd[key] = font_value
+-        font, font_file_name = font_value
++        result = self._get_font_helper(prop)
++        font = result[0]
+         font.clear()
+         font.set_size(prop.get_size_in_points(), self.dpi)
+-        return font, font_file_name
++        return result
+
+     def get_text_width_height_descent(self, s, prop, ismath):
+         w: float
+-- 
+2.39.5 (Apple Git-154)
+