dev-python/statsd: Add missing test dep, py3.8, modernize

Closes: https://bugs.gentoo.org/720096
Signed-off-by: Michał Górny <mgorny@gentoo.org>

dev-python/statsd/statsd-3.3.0.ebuild

@@ -2,28 +2,21 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
-PYTHON_COMPAT=( python3_{6,7} pypy3 )
+PYTHON_COMPAT=( python3_{6,7,8} pypy3 )
 
 inherit distutils-r1
 
 DESCRIPTION="A simple statsd client"
 HOMEPAGE="https://github.com/jsocol/pystatsd https://pypi.org/project/statsd"
-
 SRC_URI="mirror://pypi/${P:0:1}/${PN}/${P}.tar.gz"
 
 LICENSE="MIT"
 SLOT="0"
 KEYWORDS="amd64 ~arm64 x86 ~amd64-linux ~x86-linux"
-IUSE="test"
-RESTRICT="!test? ( test )"
 
-RDEPEND=""
-DEPEND="${RDEPEND}
-	dev-python/setuptools[${PYTHON_USEDEP}]
+BDEPEND="
 	test? (
-		dev-python/nose[${PYTHON_USEDEP}]
+		dev-python/mock[${PYTHON_USEDEP}]
 	)"
 
-python_test() {
-	nosetests --verbose || die
-}
+distutils_enable_tests nose