pyrsistent: drop Python 3.9 support.

Nothing on-tree depends on this. Given that is "pip installable"
("any", no patches), we should consider dropping this recipe.

dev-python/pyrsistent/pyrsistent-0.17.3.recipe

@@ -9,7 +9,7 @@ HOMEPAGE="https://pypi.org/project/pyrsistent/
 	https://github.com/tobgu/pyrsistent/"
 COPYRIGHT="2019 Tobias Gustafsson"
 LICENSE="MIT"
-REVISION="4"
+REVISION="5"
 SOURCE_URI="https://pypi.org/packages/source/p/pyrsistent/pyrsistent-$portVersion.tar.gz"
 CHECKSUM_SHA256="2e636185d9eb976a18a8a8e96efce62f2905fea90041958d8cc2a189756ebf3e"
 
@@ -26,13 +26,12 @@ 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)
 
-	eval "PROVIDES_${pythonPackage}=\"
+for pythonVersion in ${PYTHON_VERSIONS[@]}; do
+	pythonPackage=python${pythonVersion//.}
+
+	eval "PROVIDES_$pythonPackage=\"
 		${portName}_$pythonPackage = $portVersion
 		\""
 	eval "REQUIRES_$pythonPackage=\"
@@ -50,9 +49,8 @@ done
 
 INSTALL()
 {
-	for i in "${!PYTHON_PACKAGES[@]}"; do
-		pythonPackage=${PYTHON_PACKAGES[i]}
-		pythonVersion=${PYTHON_VERSIONS[$i]}
+	for pythonVersion in ${PYTHON_VERSIONS[@]}; do
+		pythonPackage=python${pythonVersion//.}
 
 		python=python$pythonVersion
 		installLocation=$prefix/lib/$python/vendor-packages/
@@ -64,7 +62,7 @@ INSTALL()
 		$python setup.py build install \
 			--root=/ --prefix=$prefix
 
-		packageEntries  $pythonPackage \
+		packageEntries $pythonPackage \
 			$prefix/lib/python*
 	done
 }