dev-python/pydispatcher: Port up to py3.9

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

dev-python/pydispatcher/pydispatcher-2.1.2.ebuild

@@ -2,7 +2,7 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=6
-PYTHON_COMPAT=( python3_{6,7} )
+PYTHON_COMPAT=( python3_{6..9} )
 
 inherit distutils-r1
 
@@ -10,16 +10,14 @@ MY_P="PyPyDispatcher-${PV}"
 DESCRIPTION="Multi-producer-multi-consumer signal dispatching mechanism"
 HOMEPAGE="https://github.com/scrapy/pypydispatcher https://pypi.org/project/PyPyDispatcher/"
 SRC_URI="mirror://pypi/${MY_P::1}/${MY_P%-*}/${MY_P}.tar.gz"
+S=${WORKDIR}/${MY_P}
 
 LICENSE="BSD"
 SLOT="0"
 KEYWORDS="~amd64 ~ia64 ~ppc ~x86"
 IUSE="doc"
 
-DEPEND="dev-python/setuptools[${PYTHON_USEDEP}]"
-RDEPEND=""
-
-S=${WORKDIR}/${MY_P}
+distutils_enable_tests unittest
 
 python_compile_all() {
 	if use doc; then
@@ -28,10 +26,6 @@ python_compile_all() {
 	fi
 }
 
-python_test() {
-	"${EPYTHON}" -m unittest discover -v || die "Tests fail for ${EPYTHON}"
-}
-
 python_install_all() {
 	use doc && local HTML_DOCS=( docs/pydoc/. )
 	distutils-r1_python_install_all