dev-python/nose_fixes: Enable py3.{7,8}, modernize

Signed-off-by: Michał Górny <mgorny@gentoo.org>

dev-python/nose_fixes/nose_fixes-1.3.ebuild

@@ -1,9 +1,10 @@
 # Copyright 1999-2020 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=6
+EAPI=7
 
-PYTHON_COMPAT=( python3_6 pypy3 )
+DISTUTILS_USE_SETUPTOOLS=rdepend
+PYTHON_COMPAT=( python3_{6,7,8} pypy3 )
 
 inherit distutils-r1
 
@@ -14,10 +15,8 @@ SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
 LICENSE="MIT"
 SLOT="0"
 KEYWORDS="amd64 x86"
-IUSE="doc"
 
 RDEPEND="
-	dev-python/setuptools[${PYTHON_USEDEP}]
 	dev-python/nose[${PYTHON_USEDEP}]"
 DEPEND="
 	${RDEPEND}
@@ -26,20 +25,6 @@ DEPEND="
 		dev-python/pkginfo[${PYTHON_USEDEP}]
 	)"
 
-python_prepare_all() {
-	sed -e 's:../bin/sphinx-build:/usr/bin/sphinx-build:' -i docs/Makefile || die
-	distutils-r1_python_prepare_all
-}
-
-python_compile_all() {
-	use doc && emake -C docs html
-}
-
-python_install_all() {
-	use doc && local HTML_DOCS=( docs/_build/html/. )
-	distutils-r1_python_install_all
-}
-
-python_test() {
-	nosetests || die
-}
+distutils_enable_sphinx docs \
+	dev-python/pkginfo
+distutils_enable_tests nose