dev-python/pygal: python 3.9 and tests fix

Closes: https://bugs.gentoo.org/738208
Package-Manager: Portage-3.0.13, Repoman-3.0.2
Signed-off-by: Andreas Zuber <a.zuber@gmx.ch>
Signed-off-by: Thomas Deutschmann <whissi@gentoo.org>

dev-python/pygal/files/2.4.0-fix-tests.patch

@@ -0,0 +1,17 @@
+diff --git a/pygal/test/conftest.py b/pygal/test/conftest.py
+index ea36010..6fe40cb 100644
+--- a/pygal/test/conftest.py
++++ b/pygal/test/conftest.py
+@@ -48,9 +48,9 @@ def pytest_generate_tests(metafunc):
+     if hasattr(sys, 'pypy_version_info'):
+         etree.to_etree()
+
+-    if "Chart" in metafunc.funcargnames:
++    if "Chart" in metafunc.fixturenames:
+         metafunc.parametrize("Chart", pygal.CHARTS)
+-    if "datas" in metafunc.funcargnames:
++    if "datas" in metafunc.fixturenames:
+         metafunc.parametrize(
+             "datas", [[("Serie %d" % i, get_data(i)) for i in range(s)]
+                       for s in (5, 1, 0)]
+--

dev-python/pygal/pygal-2.4.0-r2.ebuild

@@ -1,8 +1,8 @@
-# Copyright 1999-2020 Gentoo Authors
+# Copyright 1999-2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
-PYTHON_COMPAT=( python3_{7,8} )
+PYTHON_COMPAT=( python3_{7..9} )
 PYTHON_REQ_USE="xml(+)"
 
 inherit distutils-r1
@@ -29,6 +29,8 @@ BDEPEND="
 	)
 "
 
+PATCHES=( "${FILESDIR}/${PV}-fix-tests.patch" )
+
 # CHANGELOG is a symlink to docs/changelog.rst
 DOCS=( docs/changelog.rst README.md )