cffi: clean up recipe, drop Python 3.9. (#11708)

On-tree recipes that depend on cffi:

- argon2_cffi_bindings
- bcrypt
- pycares
- pynacl

So we're doing the same on those too in one go.

Also:

- moved all recipes to use build/installer instead of setup.py.
- fixed calling of tests on cffi.

dev-python/argon2-cffi-bindings/argon2_cffi_bindings-21.2.0.recipe

@@ -5,7 +5,7 @@ HOMEPAGE="https://pypi.org/project/argon2-cffi-bindings/
 	https://github.com/hynek/argon2-cffi-bindings/"
 COPYRIGHT="2021 Hynek Schlawack"
 LICENSE="MIT"
-REVISION="4"
+REVISION="5"
 pypi="184b8ccce6683b0aa2fbb7ba5683ea4b9c5763f1356347f1312c32e3c66e"
 SOURCE_URI="https://files.pythonhosted.org/packages/b9/e9/$pypi/argon2-cffi-bindings-$portVersion.tar.gz"
 CHECKSUM_SHA256="bb89ceffa6c791807d1305ceb77dbfacc5aa499891d2c55661c6459651fc39e3"
@@ -32,11 +32,11 @@ BUILD_PREREQUIRES="
 	cmd:gcc$secondaryArchSuffix
 	"
 
-PYTHON_PACKAGES=(python39 python310)
-PYTHON_VERSIONS=(3.9 3.10)
-for i in "${!PYTHON_PACKAGES[@]}"; do
-	pythonPackage=${PYTHON_PACKAGES[i]}
+PYTHON_VERSIONS=(3.10)
+
+for i in "${!PYTHON_VERSIONS[@]}"; do
 	pythonVersion=${PYTHON_VERSIONS[$i]}
+	pythonPackage=python${pythonVersion//.}
 
 	eval "PROVIDES_${pythonPackage}=\"
 		${portName}_$pythonPackage = $portVersion
@@ -46,14 +46,16 @@ for i in "${!PYTHON_PACKAGES[@]}"; do
 			argon2_cffi_bindings_$pythonPackage = $portVersion
 			\""
 	fi
+
 	eval "REQUIRES_$pythonPackage=\"
 		haiku
-		cffi${secondaryArchSuffix}_$pythonPackage
+		cffi_$pythonPackage
 		cmd:python$pythonVersion
 		\""
+
 	BUILD_REQUIRES+="
-		cffi${secondaryArchSuffix}_$pythonPackage
 		build_$pythonPackage
+		cffi_$pythonPackage
 		installer_$pythonPackage
 		setuptools_scm_$pythonPackage
 		wheel_$pythonPackage
@@ -68,17 +70,16 @@ INSTALL()
 	export ARGON2_CFFI_USE_SYSTEM=1
 	export SETUPTOOLS_SCM_PRETEND_VERSION=$portVersion
 
-	for i in "${!PYTHON_PACKAGES[@]}"; do
+	for i in "${!PYTHON_VERSIONS[@]}"; do
 		pythonVersion=${PYTHON_VERSIONS[$i]}
+		pythonPackage=python${pythonVersion//.}
 
 		python=python$pythonVersion
 
-		rm -rf dist
-
 		$python -m build --wheel --skip-dependency-check --no-isolation
-		$python -m installer --p $prefix dist/*.whl
+		$python -m installer --p $prefix dist/*-$portVersion-cp${pythonVersion//.}-*.whl
 
-		packageEntries ${PYTHON_PACKAGES[i]} \
+		packageEntries $pythonPackage \
 			$prefix/lib/python*
 	done
 }