pytest: fix build, drop support for Python 3.7 and 3.8. (#8011)

dev-python/pytest/pytest-7.1.3.recipe

@@ -3,7 +3,7 @@ DESCRIPTION="The pytest framework makes it easy to write small tests, yet scales
 HOMEPAGE="https://pytest.org"
 COPYRIGHT="2010-2020 Holger Krekel and others."
 LICENSE="MIT"
-REVISION="2"
+REVISION="3"
 SOURCE_URI="https://pypi.io/packages/source/p/pytest/pytest-$portVersion.tar.gz"
 CHECKSUM_SHA256="4f365fec2dff9c1162f834d9f18af1ba13062db0c708bf7b946f8a5c76180c39"
 
@@ -20,8 +20,8 @@ BUILD_REQUIRES="
 	haiku_devel
 	"
 
-PYTHON_PACKAGES=(python3 python38 python39 python310)
-PYTHON_VERSIONS=(3.7 3.8 3.9 3.10)
+PYTHON_PACKAGES=(python39 python310)
+PYTHON_VERSIONS=(3.9 3.10)
 for i in "${!PYTHON_PACKAGES[@]}"; do
 pythonPackage=${PYTHON_PACKAGES[i]}
 pythonVersion=${PYTHON_VERSIONS[$i]}
@@ -47,6 +47,7 @@ BUILD_REQUIRES="$BUILD_REQUIRES
 	"
 BUILD_PREREQUIRES="$BUILD_PREREQUIRES
 	cmd:python$pythonVersion
+	pip_$pythonPackage
 	"
 done