dev-python/matplotlib: backport pyparsing-3.1 fix

Closes: https://bugs.gentoo.org/911127
Signed-off-by: Sam James <sam@gentoo.org>

2 files changed, 608 insertions, 0 deletions

diff --git a/dev-python/matplotlib/files/matplotlib-3.7.2-pyparsing-3.1.patch b/dev-python/matplotlib/files/matplotlib-3.7.2-pyparsing-3.1.patch
new file mode 100644
index 000000000000..44082b5c0227
--- /dev/null
+++ b/dev-python/matplotlib/files/matplotlib-3.7.2-pyparsing-3.1.patch
@@ -0,0 +1,274 @@
+https://bugs.gentoo.org/911127
+https://github.com/matplotlib/matplotlib/issues/26152
+https://github.com/matplotlib/matplotlib/pull/26432
+
+From c5183789d7d0cd151c201eeb2ce4fc786b6e43c2 Mon Sep 17 00:00:00 2001
+From: Jody Klymak <jklymak@gmail.com>
+Date: Tue, 1 Aug 2023 13:41:44 -0700
+Subject: [PATCH 1/2] Backport PR #26431: MNT: Unpin pyparsing, xfail error
+ message tests for pyparsing 3.1.0
+
+--- a/environment.yml
++++ b/environment.yml
+@@ -19,7 +19,7 @@ dependencies:
+   - pillow>=6.2
+   - pybind11>=2.6.0
+   - pygobject
+-  - pyparsing!=3.1.0
++  - pyparsing>=2.3.1
+   - pyqt
+   - python-dateutil>=2.1
+   - setuptools
+--- a/lib/matplotlib/tests/test_mathtext.py
++++ b/lib/matplotlib/tests/test_mathtext.py
+@@ -6,13 +6,18 @@
+ from xml.etree import ElementTree as ET
+ 
+ import numpy as np
++from packaging.version import parse as parse_version
++import pyparsing
+ import pytest
+ 
++
+ import matplotlib as mpl
+ from matplotlib.testing.decorators import check_figures_equal, image_comparison
+ import matplotlib.pyplot as plt
+ from matplotlib import mathtext, _mathtext
+ 
++pyparsing_version = parse_version(pyparsing.__version__)
++
+ 
+ # If test is removed, use None as placeholder
+ math_tests = [
+@@ -270,6 +275,9 @@ def test_fontinfo():
+     assert table['version'] == (1, 0)
+ 
+ 
++# See gh-26152 for more context on this xfail
++@pytest.mark.xfail(pyparsing_version.release == (3, 1, 0),
++                   reason="Error messages are incorrect for this version")
+ @pytest.mark.parametrize(
+     'math, msg',
+     [
+--- a/lib/matplotlib/tests/test_text.py
++++ b/lib/matplotlib/tests/test_text.py
+@@ -4,6 +4,8 @@
+ 
+ import numpy as np
+ from numpy.testing import assert_almost_equal
++from packaging.version import parse as parse_version
++import pyparsing
+ import pytest
+ 
+ import matplotlib as mpl
+@@ -16,6 +18,8 @@
+ from matplotlib.testing._markers import needs_usetex
+ from matplotlib.text import Text
+ 
++pyparsing_version = parse_version(pyparsing.__version__)
++
+ 
+ @image_comparison(['font_styles'])
+ def test_font_styles():
+@@ -809,6 +813,9 @@ def test_unsupported_script(recwarn):
+          (r"Matplotlib currently does not support Bengali natively.",)])
+ 
+ 
++# See gh-26152 for more information on this xfail
++@pytest.mark.xfail(pyparsing_version.release == (3, 1, 0),
++                   reason="Error messages are incorrect with pyparsing 3.1.0")
+ def test_parse_math():
+     fig, ax = plt.subplots()
+     ax.text(0, 0, r"$ \wrong{math} $", parse_math=False)
+@@ -819,6 +826,9 @@ def test_parse_math():
+         fig.canvas.draw()
+ 
+ 
++# See gh-26152 for more information on this xfail
++@pytest.mark.xfail(pyparsing_version.release == (3, 1, 0),
++                   reason="Error messages are incorrect with pyparsing 3.1.0")
+ def test_parse_math_rcparams():
+     # Default is True
+     fig, ax = plt.subplots()
+--- a/setup.py
++++ b/setup.py
+@@ -325,7 +325,7 @@ def make_release_tree(self, base_dir, files):
+         "numpy>=1.20",
+         "packaging>=20.0",
+         "pillow>=6.2.0",
+-        "pyparsing>=2.3.1,<3.1",
++        "pyparsing>=2.3.1",
+         "python-dateutil>=2.7",
+     ] + (
+         # Installing from a git checkout that is not producing a wheel.
+
+From 7f475c5088a826adffac2885d027d4f8b3cba218 Mon Sep 17 00:00:00 2001
+From: Kyle Sunden <git@ksunden.space>
+Date: Mon, 26 Jun 2023 22:17:27 -0500
+Subject: [PATCH 2/2] Manual backport of #26198
+
+Cherry picked and fixed up, ignored changes to the pyi file (which doesn't exist on this branch).
+--- a/lib/matplotlib/_mathtext.py
++++ b/lib/matplotlib/_mathtext.py
+@@ -1802,8 +1802,11 @@ def __init__(self):
+         def set_names_and_parse_actions():
+             for key, val in vars(p).items():
+                 if not key.startswith('_'):
+-                    # Set names on everything -- very useful for debugging
+-                    val.setName(key)
++                    # Set names on (almost) everything -- very useful for debugging
++                    # token, placeable, and auto_delim are forward references which
++                    # are left without names to ensure useful error messages
++                    if key not in ("token", "placeable", "auto_delim"):
++                        val.setName(key)
+                     # Set actions
+                     if hasattr(self, key):
+                         val.setParseAction(getattr(self, key))
+@@ -1840,63 +1843,39 @@ def csnames(group, names):
+         p.unknown_symbol = Regex(r"\\[A-Za-z]*")("name")
+ 
+         p.font           = csnames("font", self._fontnames)
+-        p.start_group    = (
+-            Optional(r"\math" + oneOf(self._fontnames)("font")) + "{")
++        p.start_group    = Optional(r"\math" + oneOf(self._fontnames)("font")) + "{"
+         p.end_group      = Literal("}")
+ 
+         p.delim          = oneOf(self._delims)
+ 
+-        set_names_and_parse_actions()  # for root definitions.
+-
+         # Mutually recursive definitions.  (Minimizing the number of Forward
+         # elements is important for speed.)
+-        p.accent           = Forward()
+         p.auto_delim       = Forward()
+-        p.binom            = Forward()
+-        p.customspace      = Forward()
+-        p.frac             = Forward()
+-        p.dfrac            = Forward()
+-        p.function         = Forward()
+-        p.genfrac          = Forward()
+-        p.group            = Forward()
+-        p.operatorname     = Forward()
+-        p.overline         = Forward()
+-        p.overset          = Forward()
+         p.placeable        = Forward()
+         p.required_group   = Forward()
+-        p.simple           = Forward()
+         p.optional_group   = Forward()
+-        p.sqrt             = Forward()
+-        p.subsuper         = Forward()
+         p.token            = Forward()
+-        p.underset         = Forward()
+ 
+         set_names_and_parse_actions()  # for mutually recursive definitions.
+ 
+-        p.customspace <<= cmd(r"\hspace", "{" + p.float_literal("space") + "}")
++        p.optional_group <<= "{" + ZeroOrMore(p.token)("group") + "}"
++        p.required_group <<= "{" + OneOrMore(p.token)("group") + "}"
+ 
+-        p.accent <<= (
++        p.customspace = cmd(r"\hspace", "{" + p.float_literal("space") + "}")
++
++        p.accent = (
+             csnames("accent", [*self._accent_map, *self._wide_accents])
+             - p.placeable("sym"))
+ 
+-        p.function <<= csnames("name", self._function_names)
+-        p.operatorname <<= cmd(
+-            r"\operatorname",
+-            "{" + ZeroOrMore(p.simple | p.unknown_symbol)("name") + "}")
++        p.function = csnames("name", self._function_names)
+ 
+-        p.group <<= p.start_group + ZeroOrMore(p.token)("group") + p.end_group
++        p.group = p.start_group + ZeroOrMore(p.token)("group") + p.end_group
+ 
+-        p.optional_group <<= "{" + ZeroOrMore(p.token)("group") + "}"
+-        p.required_group <<= "{" + OneOrMore(p.token)("group") + "}"
+-
+-        p.frac  <<= cmd(
+-            r"\frac", p.required_group("num") + p.required_group("den"))
+-        p.dfrac <<= cmd(
+-            r"\dfrac", p.required_group("num") + p.required_group("den"))
+-        p.binom <<= cmd(
+-            r"\binom", p.required_group("num") + p.required_group("den"))
++        p.frac  = cmd(r"\frac", p.required_group("num") + p.required_group("den"))
++        p.dfrac = cmd(r"\dfrac", p.required_group("num") + p.required_group("den"))
++        p.binom = cmd(r"\binom", p.required_group("num") + p.required_group("den"))
+ 
+-        p.genfrac <<= cmd(
++        p.genfrac = cmd(
+             r"\genfrac",
+             "{" + Optional(p.delim)("ldelim") + "}"
+             + "{" + Optional(p.delim)("rdelim") + "}"
+@@ -1905,20 +1884,38 @@ def csnames(group, names):
+             + p.required_group("num")
+             + p.required_group("den"))
+ 
+-        p.sqrt <<= cmd(
++        p.sqrt = cmd(
+             r"\sqrt{value}",
+             Optional("[" + OneOrMore(NotAny("]") + p.token)("root") + "]")
+             + p.required_group("value"))
+ 
+-        p.overline <<= cmd(r"\overline", p.required_group("body"))
++        p.overline = cmd(r"\overline", p.required_group("body"))
+ 
+-        p.overset  <<= cmd(
++        p.overset  = cmd(
+             r"\overset",
+             p.optional_group("annotation") + p.optional_group("body"))
+-        p.underset <<= cmd(
++        p.underset = cmd(
+             r"\underset",
+             p.optional_group("annotation") + p.optional_group("body"))
+ 
++        p.subsuper = (
++            (Optional(p.placeable)("nucleus")
++             + OneOrMore(oneOf(["_", "^"]) - p.placeable)("subsuper")
++             + Regex("'*")("apostrophes"))
++            | Regex("'+")("apostrophes")
++            | (p.placeable("nucleus") + Regex("'*")("apostrophes"))
++        )
++
++        p.simple = p.space | p.customspace | p.font | p.subsuper
++
++        p.token <<= (
++            p.simple
++            | p.auto_delim
++            | p.unknown_symbol  # Must be last
++        )
++
++        p.operatorname = cmd(r"\operatorname", "{" + ZeroOrMore(p.simple)("name") + "}")
++
+         p.placeable     <<= (
+             p.accent     # Must be before symbol as all accents are symbols
+             | p.symbol   # Must be second to catch all named symbols and single
+@@ -1936,27 +1933,6 @@ def csnames(group, names):
+             | p.overline
+         )
+ 
+-        p.simple        <<= (
+-            p.space
+-            | p.customspace
+-            | p.font
+-            | p.subsuper
+-        )
+-
+-        p.subsuper      <<= (
+-            (Optional(p.placeable)("nucleus")
+-             + OneOrMore(oneOf(["_", "^"]) - p.placeable)("subsuper")
+-             + Regex("'*")("apostrophes"))
+-            | Regex("'+")("apostrophes")
+-            | (p.placeable("nucleus") + Regex("'*")("apostrophes"))
+-        )
+-
+-        p.token         <<= (
+-            p.simple
+-            | p.auto_delim
+-            | p.unknown_symbol  # Must be last
+-        )
+-
+         p.auto_delim    <<= (
+             r"\left" - (p.delim("left") | Error("Expected a delimiter"))
+             + ZeroOrMore(p.simple | p.auto_delim)("mid")
+
diff --git a/dev-python/matplotlib/matplotlib-3.7.2-r1.ebuild b/dev-python/matplotlib/matplotlib-3.7.2-r1.ebuild
new file mode 100644
index 000000000000..c9db102721f2
--- /dev/null
+++ b/dev-python/matplotlib/matplotlib-3.7.2-r1.ebuild
@@ -0,0 +1,334 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_EXT=1
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{10..11} )
+PYTHON_REQ_USE='tk?,threads(+)'
+
+inherit distutils-r1 flag-o-matic multiprocessing prefix pypi
+inherit toolchain-funcs virtualx
+
+FT_PV=2.6.1
+DESCRIPTION="Pure python plotting library with matlab like syntax"
+HOMEPAGE="
+	https://matplotlib.org/
+	https://github.com/matplotlib/matplotlib/
+	https://pypi.org/project/matplotlib/
+"
+SRC_URI+="
+	test? (
+		https://downloads.sourceforge.net/project/freetype/freetype2/${FT_PV}/freetype-${FT_PV}.tar.gz
+	)
+"
+
+# Main license: matplotlib
+# Some modules: BSD
+# matplotlib/backends/qt4_editor: MIT
+# Fonts: BitstreamVera, OFL-1.1
+LICENSE="BitstreamVera BSD matplotlib MIT OFL-1.1"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~arm64-macos ~x64-macos"
+IUSE="cairo doc excel examples gtk3 latex qt5 tk webagg wxwidgets"
+
+# internal copy of pycxx highly patched
+#	dev-python/pycxx
+RDEPEND="
+	dev-python/certifi[${PYTHON_USEDEP}]
+	>=dev-python/contourpy-1.0.1[${PYTHON_USEDEP}]
+	>=dev-python/cycler-0.10.0-r1[${PYTHON_USEDEP}]
+	>=dev-python/fonttools-4.22.0[${PYTHON_USEDEP}]
+	>=dev-python/kiwisolver-1.2.0[${PYTHON_USEDEP}]
+	>=dev-python/numpy-1.20[${PYTHON_USEDEP}]
+	>=dev-python/packaging-20.0[${PYTHON_USEDEP}]
+	>=dev-python/pillow-7.1.1[jpeg,webp,${PYTHON_USEDEP}]
+	>=dev-python/pyparsing-2.3.1[${PYTHON_USEDEP}]
+	>=dev-python/python-dateutil-2.7[${PYTHON_USEDEP}]
+	>=dev-python/pytz-2019.3[${PYTHON_USEDEP}]
+	media-fonts/dejavu
+	media-fonts/stix-fonts
+	media-libs/freetype:2
+	media-libs/libpng:0
+	>=media-libs/qhull-2013:=
+	virtual/imagemagick-tools[jpeg,tiff]
+	cairo? (
+		dev-python/cairocffi[${PYTHON_USEDEP}]
+	)
+	excel? (
+		dev-python/xlwt[${PYTHON_USEDEP}]
+	)
+	gtk3? (
+		>=dev-python/pygobject-3.40.1-r1:3[cairo?,${PYTHON_USEDEP}]
+		x11-libs/gtk+:3[introspection]
+	)
+	latex? (
+		virtual/latex-base
+		app-text/dvipng
+		app-text/ghostscript-gpl
+		app-text/poppler[utils]
+		dev-texlive/texlive-fontsrecommended
+		dev-texlive/texlive-latexextra
+		dev-texlive/texlive-luatex
+		dev-texlive/texlive-xetex
+	)
+	qt5? (
+		dev-python/PyQt5[gui,widgets,${PYTHON_USEDEP}]
+	)
+	webagg? (
+		>=dev-python/tornado-6.0.4[${PYTHON_USEDEP}]
+	)
+	wxwidgets? (
+		$(python_gen_cond_dep '
+			dev-python/wxpython:*[${PYTHON_USEDEP}]
+		' python3_{8..10})
+	)
+"
+
+BDEPEND="
+	${RDEPEND}
+	dev-python/pybind11[${PYTHON_USEDEP}]
+	>=dev-python/setuptools-scm-7[${PYTHON_USEDEP}]
+	virtual/pkgconfig
+	doc? (
+		>=app-text/dvipng-1.15-r1
+		>=dev-python/colorspacious-1.1.2[${PYTHON_USEDEP}]
+		>=dev-python/ipython-1.18.2[${PYTHON_USEDEP}]
+		>=dev-python/numpydoc-0.9.2[${PYTHON_USEDEP}]
+		>=dev-python/scipy-1.4.1[${PYTHON_USEDEP}]
+		>=dev-python/sphinx-1.3.1[${PYTHON_USEDEP}]
+		>=dev-python/sphinx-gallery-0.3.1-r1[${PYTHON_USEDEP}]
+		>=dev-python/xlwt-1.3.0-r1[${PYTHON_USEDEP}]
+		virtual/latex-base
+		dev-texlive/texlive-latexextra
+		dev-texlive/texlive-fontsrecommended
+		dev-texlive/texlive-latexrecommended
+		dev-texlive/texlive-luatex
+		dev-texlive/texlive-xetex
+		>=media-gfx/graphviz-2.42.3[cairo]
+	)
+	test? (
+		dev-python/mock[${PYTHON_USEDEP}]
+		dev-python/psutil[${PYTHON_USEDEP}]
+		dev-python/pytest-xdist[${PYTHON_USEDEP}]
+		>=dev-python/tornado-6.0.4[${PYTHON_USEDEP}]
+		gtk3? (
+			>=dev-python/pygobject-3.40.1-r1:3[cairo?,${PYTHON_USEDEP}]
+			x11-libs/gtk+:3[introspection]
+		)
+	)
+"
+
+distutils_enable_tests pytest
+
+use_setup() {
+	local uword="${2:-${1}}"
+	if use "${1}"; then
+		echo "${uword} = True"
+		echo "${uword}agg = True"
+	else
+		echo "${uword} = False"
+		echo "${uword}agg = False"
+	fi
+}
+
+python_prepare_all() {
+# Generates test failures, but fedora does it
+#	local PATCHES=(
+#		"${FILESDIR}"/${P}-unbundle-pycxx.patch
+#		"${FILESDIR}"/${P}-unbundle-agg.patch
+#	)
+#	rm -r agg24 CXX || die
+#	rm -r agg24 || die
+
+	# Affects installed _version.py, bug #854600
+	export SETUPTOOLS_SCM_PRETEND_VERSION=${PV}
+
+	local PATCHES=(
+		"${FILESDIR}"/matplotlib-3.3.3-disable-lto.patch
+		"${FILESDIR}"/matplotlib-3.7.1-test.patch
+		"${FILESDIR}"/matplotlib-3.7.2-macOS_no-Cocoa.patch
+		"${FILESDIR}"/matplotlib-3.7.2-pyparsing-3.1.patch
+	)
+
+	sed \
+		-e 's/matplotlib.pyparsing_py[23]/pyparsing/g' \
+		-i lib/matplotlib/{mathtext,fontconfig_pattern}.py \
+		|| die "sed pyparsing failed"
+	sed -i -e '/setuptools_scm/s:,<7::' setup.py || die
+
+	hprefixify setupext.py
+
+	rm -rf libqhull || die
+
+	distutils-r1_python_prepare_all
+}
+
+python_configure_all() {
+	append-flags -fno-strict-aliasing
+	append-cppflags -DNDEBUG  # or get old trying to do triangulation
+	tc-export PKG_CONFIG
+
+	unset DISPLAY # bug #278524
+	export XDG_RUNTIME_DIR="${T}/runtime-dir"
+	mkdir "${XDG_RUNTIME_DIR}" || die
+	chmod 0700 "${XDG_RUNTIME_DIR}" || die
+}
+
+python_configure() {
+	mkdir -p "${BUILD_DIR}" || die
+
+	# create setup.cfg (see setup.cfg.template for any changes).
+
+	# common switches.
+	cat > "${BUILD_DIR}"/setup.cfg <<- EOF || die
+		[directories]
+		basedirlist = ${EPREFIX}/usr
+		[provide_packages]
+		pytz = False
+		dateutil = False
+		[libs]
+		system_freetype = True
+		system_qhull = True
+		[packages]
+		tests = True
+		[gui_support]
+		agg = True
+		gtk = False
+		gtkagg = False
+		macosx = False
+		pyside = False
+		pysideagg = False
+		qt4 = False
+		qt4agg = False
+		$(use_setup cairo)
+		$(use_setup gtk3)
+		$(use_setup qt5)
+		$(use_setup tk)
+		$(use_setup wxwidgets wx)
+	EOF
+
+	if use gtk3 && use cairo; then
+		echo "gtk3cairo = True" >> "${BUILD_DIR}"/setup.cfg || die
+	else
+		echo "gtk3cairo = False" >> "${BUILD_DIR}"/setup.cfg || die
+	fi
+}
+
+wrap_setup() {
+	local MAKEOPTS=-j1
+	local -x MPLSETUPCFG="${BUILD_DIR}"/setup.cfg
+	"$@"
+}
+
+python_compile() {
+	wrap_setup distutils-r1_python_compile
+	find "${BUILD_DIR}" -name '*.pth' -delete || die
+}
+
+python_compile_all() {
+	if use doc; then
+		cd doc || die
+
+		VARTEXFONTS="${T}"/fonts \
+		emake SPHINXOPTS= O=-Dplot_formats=png:100 html
+	fi
+}
+
+src_test() {
+	mkdir build || die
+	ln -s "${WORKDIR}/freetype-${FT_PV}" build/ || die
+	virtx distutils-r1_src_test
+}
+
+python_test() {
+	local EPYTEST_DESELECT=(
+		# broken by -Wdefault
+		"tests/test_rcparams.py::test_validator_invalid[validate_strlist-arg6-MatplotlibDeprecationWarning]"
+		"tests/test_rcparams.py::test_validator_invalid[validate_strlist-arg7-MatplotlibDeprecationWarning]"
+		tests/test_testing.py::test_warn_to_fail
+		# TODO?
+		tests/test_backend_qt.py::test_fig_sigint_override
+		# unhappy about xdist
+		tests/test_widgets.py::test_span_selector_animated_artists_callback
+	)
+
+	[[ ${EPYTHON} == python3.11 ]] && EPYTEST_DESELECT+=(
+		# https://github.com/matplotlib/matplotlib/issues/23384
+		"tests/test_backends_interactive.py::test_figure_leak_20490[time_mem1-{'MPLBACKEND': 'qtagg', 'QT_API': 'PyQt5'}]"
+		"tests/test_backends_interactive.py::test_figure_leak_20490[time_mem1-{'MPLBACKEND': 'qtcairo', 'QT_API': 'PyQt5'}]"
+	)
+
+	case "${ABI}" in
+		alpha|arm|hppa|m68k|o32|ppc|s390|sh|sparc|x86)
+			EPYTEST_DESELECT+=(
+				# too large for 32-bit platforms
+				'tests/test_axes.py::test_psd_csd[png]'
+			)
+			;;
+		*)
+			;;
+	esac
+
+	if use hppa ; then
+		EPYTEST_DESELECT+=(
+			'tests/test_mathtext.py::test_mathtext_exceptions[hspace without value]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[hspace with invalid value]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[function without space]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[accent without space]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[frac without parameters]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[frac with empty parameters]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[binom without parameters]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[binom with empty parameters]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[genfrac without parameters]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[genfrac with empty parameters]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[sqrt without parameters]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[sqrt with invalid value]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[overline without parameters]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[overline with empty parameter]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[left with invalid delimiter]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[right with invalid delimiter]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[unclosed parentheses with sizing]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[unclosed parentheses without sizing]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[dfrac without parameters]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[dfrac with empty parameters]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[overset without parameters]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[underset without parameters]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[unknown symbol]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[double superscript]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[double subscript]'
+			'tests/test_mathtext.py::test_mathtext_exceptions[super on sub without braces]'
+			'tests/test_quiver.py::test_barbs[png]'
+			'tests/test_quiver.py::test_barbs_pivot[png]'
+			'tests/test_quiver.py::test_barbs_flip[png]'
+			'tests/test_text.py::test_parse_math'
+			'tests/test_text.py::test_parse_math_rcparams'
+		)
+	fi
+
+	# we need to rebuild mpl against bundled freetype, otherwise
+	# over 1000 tests will fail because of mismatched font rendering
+	grep -v system_freetype "${BUILD_DIR}"/setup.cfg \
+		> "${BUILD_DIR}"/test-setup.cfg || die
+	local -x MPLSETUPCFG="${BUILD_DIR}"/test-setup.cfg
+
+	esetup.py build -j1 --build-lib="${BUILD_DIR}"/test-lib
+	local -x PYTHONPATH=${BUILD_DIR}/test-lib:${PYTHONPATH}
+
+	# speed tests up
+	local -x PYTEST_DISABLE_PLUGIN_AUTOLOAD=1
+	nonfatal epytest --pyargs matplotlib -m "not network" \
+		-p xdist.plugin -n "$(makeopts_jobs)" || die
+}
+
+python_install_all() {
+	use doc && local HTML_DOCS=( doc/build/html/. )
+
+	distutils-r1_python_install_all
+
+	if use examples; then
+		dodoc -r examples
+		docompress -x /usr/share/doc/${PF}/examples
+	fi
+}