pyproject_metadata: drop Python 3.9 support.

Only on-tree user (meson_python) already is 3.10 only.

dev-python/pyproject-metadata/pyproject_metadata-0.7.1.recipe

@@ -8,7 +8,7 @@ validate this input and generate a PEP 643-compliant metadata file (e.g. *PKG-IN
 HOMEPAGE="https://github.com/FFY00/python-pyproject-metadata"
 COPYRIGHT="2019 Filipe Laíns"
 LICENSE="MIT"
-REVISION="3"
+REVISION="4"
 SOURCE_URI="https://pypi.python.org/packages/source/p/pyproject-metadata/pyproject-metadata-$portVersion.tar.gz"
 CHECKSUM_SHA256="0a94f18b108b9b21f3a26a3d541f056c34edcb17dc872a144a15618fed7aef67"
 SOURCE_DIR="pyproject-metadata-$portVersion"
@@ -26,11 +26,10 @@ BUILD_REQUIRES="
 	haiku_devel
 	"
 
-PYTHON_PACKAGES=(python39 python310)
-PYTHON_VERSIONS=(3.9 3.10)
-for i in "${!PYTHON_PACKAGES[@]}"; do
-	pythonPackage=${PYTHON_PACKAGES[i]}
-	pythonVersion=${PYTHON_VERSIONS[$i]}
+PYTHON_VERSIONS=(3.10)
+
+for pythonVersion in ${PYTHON_VERSIONS[@]}; do
+	pythonPackage=python${pythonVersion//.}
 
 	eval "PROVIDES_$pythonPackage=\"
 		${portName}_$pythonPackage = $portVersion
@@ -52,15 +51,15 @@ done
 
 INSTALL()
 {
-	for i in "${!PYTHON_PACKAGES[@]}"; do
-		pythonVersion=${PYTHON_VERSIONS[$i]}
+	for pythonVersion in ${PYTHON_VERSIONS[@]}; do
+		pythonPackage=python${pythonVersion//.}
 
 		python=python$pythonVersion
 
 		$python -m build --wheel --skip-dependency-check --no-isolation
 		$python -m installer -p $prefix dist/*.whl
 
-		packageEntries ${PYTHON_PACKAGES[i]} \
+		packageEntries $pythonPackage \
 			$prefix/lib/python*
 	done
 }