dev-python/bibtexparser: Port up to py3.9, fix ebuild

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

dev-python/bibtexparser/bibtexparser-1.1.0.ebuild

@@ -3,27 +3,19 @@
 
 EAPI=7
 
-PYTHON_COMPAT=( python3_{6,7} )
+PYTHON_COMPAT=( python3_{6..9} )
 
 inherit distutils-r1 python-r1
 
 DESCRIPTION="A BibTeX parser written in python"
 HOMEPAGE="https://github.com/sciunto-org/python-bibtexparser"
 SRC_URI="https://github.com/sciunto-org/python-bibtexparser/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+S="${WORKDIR}/python-${P}"
 
 LICENSE="|| ( BSD LGPL-3 )"
 SLOT="0"
 KEYWORDS="~amd64 ~x86"
-IUSE="test"
-RESTRICT="!test? ( test )"
 
 RDEPEND="dev-python/pyparsing[${PYTHON_USEDEP}]"
-DEPEND="${RDEPEND}
-	dev-python/setuptools[${PYTHON_USEDEP}]
-	test? ( dev-python/nose[${PYTHON_USEDEP}] )"
 
-S="${WORKDIR}/python-${P}"
-
-src_test() {
-	python_foreach_impl nosetests
-}
+distutils_enable_tests nose