matplotlib · ksunden · Feb 15, 2024 · Feb 8, 2024 · Sep 4, 2023 · Feb 14, 2024
diff --git a/.github/workflows/cibuildwheel.yml b/.github/workflows/cibuildwheel.yml
@@ -70,7 +70,7 @@ jobs:
           https://github.com/qhull/qhull/raw/2020.2/COPYING.txt
 
       - name: Build wheels for CPython 3.12
-        uses: pypa/cibuildwheel@39a63b5912f086dd459cf6fcb13dcdd3fe3bc24d # v2.15.0
+        uses: pypa/cibuildwheel@ce3fb7832089eb3e723a0a99cab7f3eaccf074fd # v2.16.5
         env:
           CIBW_BUILD: "cp312-*"
           CIBW_SKIP: "*-musllinux* *i686* *win32*"
@@ -94,7 +94,7 @@ jobs:
             pip install --pre "numpy>=1.25"
 
       - name: Build wheels for CPython 3.11
-        uses: pypa/cibuildwheel@39a63b5912f086dd459cf6fcb13dcdd3fe3bc24d # v2.15.0
+        uses: pypa/cibuildwheel@ce3fb7832089eb3e723a0a99cab7f3eaccf074fd # v2.16.5
         env:
           CIBW_BUILD: "cp311-*"
           CIBW_SKIP: "*-musllinux*"
@@ -107,7 +107,7 @@ jobs:
           CIBW_ARCHS: ${{ matrix.cibw_archs }}
 
       - name: Build wheels for CPython 3.10
-        uses: pypa/cibuildwheel@39a63b5912f086dd459cf6fcb13dcdd3fe3bc24d # v2.15.0
+        uses: pypa/cibuildwheel@ce3fb7832089eb3e723a0a99cab7f3eaccf074fd # v2.16.5
         env:
           CIBW_BUILD: "cp310-*"
           CIBW_SKIP: "*-musllinux*"
@@ -120,7 +120,7 @@ jobs:
           CIBW_ARCHS: ${{ matrix.cibw_archs }}
 
       - name: Build wheels for CPython 3.9
-        uses: pypa/cibuildwheel@39a63b5912f086dd459cf6fcb13dcdd3fe3bc24d # v2.15.0
+        uses: pypa/cibuildwheel@ce3fb7832089eb3e723a0a99cab7f3eaccf074fd # v2.16.5
         env:
           CIBW_BUILD: "cp39-*"
           CIBW_SKIP: "*-musllinux*"
@@ -133,7 +133,7 @@ jobs:
           CIBW_ARCHS: ${{ matrix.cibw_archs }}
 
       - name: Build wheels for CPython 3.8
-        uses: pypa/cibuildwheel@39a63b5912f086dd459cf6fcb13dcdd3fe3bc24d # v2.15.0
+        uses: pypa/cibuildwheel@ce3fb7832089eb3e723a0a99cab7f3eaccf074fd # v2.16.5
         env:
           CIBW_BUILD: "cp38-*"
           CIBW_SKIP: "*-musllinux*"
@@ -146,7 +146,7 @@ jobs:
           CIBW_ARCHS: ${{ matrix.cibw_archs }}
 
       - name: Build wheels for PyPy 3.8
-        uses: pypa/cibuildwheel@39a63b5912f086dd459cf6fcb13dcdd3fe3bc24d # v2.15.0
+        uses: pypa/cibuildwheel@ce3fb7832089eb3e723a0a99cab7f3eaccf074fd # v2.16.5
         env:
           CIBW_BUILD: "pp38-*"
           CIBW_SKIP: "*-musllinux*"
@@ -157,7 +157,7 @@ jobs:
         if: matrix.cibw_archs != 'aarch64'
 
       - name: Build wheels for PyPy 3.9
-        uses: pypa/cibuildwheel@39a63b5912f086dd459cf6fcb13dcdd3fe3bc24d # v2.15.0
+        uses: pypa/cibuildwheel@ce3fb7832089eb3e723a0a99cab7f3eaccf074fd # v2.16.5
         env:
           CIBW_BUILD: "pp39-*"
           CIBW_SKIP: "*-musllinux*"

diff --git a/lib/matplotlib/backends/backend_pgf.py b/lib/matplotlib/backends/backend_pgf.py
@@ -286,24 +286,14 @@ def __init__(self):
         self._finalize_tmpdir = weakref.finalize(self, self._tmpdir.cleanup)
 
         # test the LaTeX setup to ensure a clean startup of the subprocess
-        try:
-            self._setup_latex_process(expect_reply=False)
-        except FileNotFoundError as err:
-            raise RuntimeError(
-                f"{self.latex.args[0]!r} not found.  Install it or change "
-                f"rcParams['pgf.texsystem'] to an available TeX "
-                f"implementation.") from err
-        except OSError as err:
-            raise RuntimeError(
-                f"Error starting process {self.latex.args[0]!r}") from err
+        self._setup_latex_process(expect_reply=False)
         stdout, stderr = self.latex.communicate("\n\\makeatletter\\@@end\n")
         if self.latex.returncode != 0:
             raise LatexError(
                 f"LaTeX errored (probably missing font or error in preamble) "
                 f"while processing the following input:\n"
                 f"{self._build_latex_header()}",
                 stdout)
-
         self.latex = None  # Will be set up on first use.
         # Per-instance cache.
         self._get_box_metrics = functools.lru_cache()(self._get_box_metrics)
@@ -317,15 +307,28 @@ def _setup_latex_process(self, *, expect_reply=True):
         # Open LaTeX process for real work; register it for deletion.  On
         # Windows, we must ensure that the subprocess has quit before being
         # able to delete the tmpdir in which it runs; in order to do so, we
-        # must first `kill()` it, and then `communicate()` with it.
-        self.latex = subprocess.Popen(
-            [mpl.rcParams["pgf.texsystem"], "-halt-on-error"],
-            stdin=subprocess.PIPE, stdout=subprocess.PIPE,
-            encoding="utf-8", cwd=self.tmpdir)
+        # must first `kill()` it, and then `communicate()` with or `wait()` on
+        # it.
+        try:
+            self.latex = subprocess.Popen(
+                [mpl.rcParams["pgf.texsystem"], "-halt-on-error"],
+                stdin=subprocess.PIPE, stdout=subprocess.PIPE,
+                encoding="utf-8", cwd=self.tmpdir)
+        except FileNotFoundError as err:
+            raise RuntimeError(
+                f"{mpl.rcParams['pgf.texsystem']!r} not found; install it or change "
+                f"rcParams['pgf.texsystem'] to an available TeX implementation"
+            ) from err
+        except OSError as err:
+            raise RuntimeError(
+                f"Error starting {mpl.rcParams['pgf.texsystem']!r}") from err
 
         def finalize_latex(latex):
             latex.kill()
-            latex.communicate()
+            try:
+                latex.communicate()
+            except RuntimeError:
+                latex.wait()
 
         self._finalize_latex = weakref.finalize(
             self, finalize_latex, self.latex)

diff --git a/lib/matplotlib/tests/test_colors.py b/lib/matplotlib/tests/test_colors.py
@@ -1,6 +1,7 @@
 import copy
 import itertools
 import unittest.mock
+from packaging.version import parse as parse_version
 
 from io import BytesIO
 import numpy as np
@@ -146,9 +147,13 @@ def test_double_register_builtin_cmap():
     with pytest.raises(ValueError, match='A colormap named "viridis"'):
         with pytest.warns(mpl.MatplotlibDeprecationWarning):
             cm.register_cmap(name, mpl.colormaps[name])
-    with pytest.warns(UserWarning):
-        # TODO is warning more than once!
-        cm.register_cmap(name, mpl.colormaps[name], override_builtin=True)
+
+    if parse_version(pytest.__version__).major < 8:
+        with pytest.warns(UserWarning):
+            cm.register_cmap(name, mpl.colormaps[name], override_builtin=True)
+    else:
+        with pytest.warns(UserWarning), pytest.warns(mpl.MatplotlibDeprecationWarning):
+            cm.register_cmap(name, mpl.colormaps[name], override_builtin=True)
 
 
 def test_unregister_builtin_cmap():

diff --git a/lib/matplotlib/tests/test_rcparams.py b/lib/matplotlib/tests/test_rcparams.py
@@ -107,14 +107,12 @@ def test_rcparams_update():
     rc = mpl.RcParams({'figure.figsize': (3.5, 42)})
     bad_dict = {'figure.figsize': (3.5, 42, 1)}
     # make sure validation happens on input
-    with pytest.raises(ValueError), \
-         pytest.warns(UserWarning, match="validate"):
+    with pytest.raises(ValueError):
         rc.update(bad_dict)
 
 
 def test_rcparams_init():
-    with pytest.raises(ValueError), \
-         pytest.warns(UserWarning, match="validate"):
+    with pytest.raises(ValueError):
         mpl.RcParams({'figure.figsize': (3.5, 42, 1)})
 
 

diff --git a/lib/matplotlib/tests/test_ticker.py b/lib/matplotlib/tests/test_ticker.py
@@ -3,6 +3,7 @@
 import locale
 import logging
 import re
+from packaging.version import parse as parse_version
 
 import numpy as np
 from numpy.testing import assert_almost_equal, assert_array_equal
@@ -730,10 +731,17 @@ def test_mathtext_ticks(self):
             'axes.formatter.use_mathtext': False
         })
 
-        with pytest.warns(UserWarning, match='cmr10 font should ideally'):
-            fig, ax = plt.subplots()
-            ax.set_xticks([-1, 0, 1])
-            fig.canvas.draw()
+        if parse_version(pytest.__version__).major < 8:
+            with pytest.warns(UserWarning, match='cmr10 font should ideally'):
+                fig, ax = plt.subplots()
+                ax.set_xticks([-1, 0, 1])
+                fig.canvas.draw()
+        else:
+            with pytest.warns(UserWarning, match="Glyph 8722"), \
+                 pytest.warns(UserWarning, match='cmr10 font should ideally'):
+                fig, ax = plt.subplots()
+                ax.set_xticks([-1, 0, 1])
+                fig.canvas.draw()
 
     def test_cmr10_substitutions(self, caplog):
         mpl.rcParams.update({

diff --git a/src/_macosx.m b/src/_macosx.m
@@ -547,6 +547,8 @@ int mpl_check_modifier(
             close(channel[0]);
     }
 
+    Py_BEGIN_ALLOW_THREADS
+
     NSDate* date =
         (timeout > 0.0) ? [NSDate dateWithTimeIntervalSinceNow: timeout]
                         : [NSDate distantFuture];
@@ -559,6 +561,8 @@ int mpl_check_modifier(
        [NSApp sendEvent: event];
     }
 
+    Py_END_ALLOW_THREADS
+
     if (py_sigint_handler) { PyOS_setsig(SIGINT, py_sigint_handler); }
     if (sigint_socket) { CFSocketInvalidate(sigint_socket); }
     if (!error) { close(channel[1]); }