OpenCV: decomission python2 (#5442)

* OpenCV: decomission python2

* Fix Python module-path

media-libs/opencv/opencv-4.5.0.recipe

@@ -10,7 +10,7 @@ COPYRIGHT="2000-2020, Intel Corporation
 	2015-2016, Itseez Inc.
 	2019-2020, Xperience AI"
 LICENSE="BSD (3-clause)"
-REVISION="1"
+REVISION="2"
 SOURCE_URI="https://github.com/opencv/opencv/archive/$portVersion.tar.gz"
 SOURCE_FILENAME="opencv-$portVersion.tar.gz"
 CHECKSUM_SHA256="dde4bf8d6639a5d3fe34d5515eab4a15669ded609a1d622350c7ff20dace1907"
@@ -104,6 +104,14 @@ REQUIRES_devel="
 	opencv$secondaryArchSuffix == $portVersion base
 	"
 
+PROVIDES_python="
+	opencv${secondaryArchSuffix}_python = $portVersionCompat
+	"
+REQUIRES_python="
+	haiku$secondaryArchSuffix
+	opencv$secondaryArchSuffix == $portVersion base
+	"
+
 PROVIDES_tools="
 	opencv${secondaryArchSuffix}_tools = $portVersionCompat
 	cmd:opencv_annotation$commandSuffix = $portVersion
@@ -115,6 +123,8 @@ PROVIDES_tools="
 REQUIRES_tools="
 	haiku$secondaryArchSuffix
 	opencv$secondaryArchSuffix == $portVersion base
+	cmd:f2py3
+	cmd:python3
 	"
 
 BUILD_REQUIRES="
@@ -167,7 +177,6 @@ BUILD_PREREQUIRES="
 #	cmd:ant
 	cmd:cmake
 	cmd:doxygen
-	cmd:f2py2
 	cmd:f2py3
 	cmd:gcc$secondaryArchSuffix
 #	cmd:javac
@@ -176,7 +185,6 @@ BUILD_PREREQUIRES="
 	cmd:make
 #	cmd:matlab # maybe later
 	cmd:pkg_config$secondaryArchSuffix
-	cmd:python2
 	cmd:python3
 	"
 
@@ -206,6 +214,8 @@ BUILD()
 		ARCH_SUBDIR="$secondaryArchSuffix/"
 	fi
 
+	pythonVersion=$(python3 --version 2>&1 | sed 's/Python //' | head -c3)
+
 	cmake .. \
 		-DWITH_GDAL=ON \
 		-DWITH_IPP=OFF \
@@ -217,11 +227,12 @@ BUILD()
 		-DCMAKE_BUILD_TYPE=Release \
 		-DCMAKE_SKIP_RPATH=ON \
 		-DENABLE_PIC=OFF \
-		-D OPENCV_GENERATE_PKGCONFIG=YES \
+		-DOPENCV_GENERATE_PKGCONFIG=YES \
 		-DCMAKE_INSTALL_PREFIX:PATH="$prefix" \
 		-DOPENCV_OTHER_INSTALL_PATH:PATH="$dataDir" \
 		-DOpenBLAS_INCLUDE_DIR="$portPackageLinksDir/openblas${secondaryArchSuffix}_devel/develop/headers/$ARCH_SUBDIR" \
-		-DOpenBLAS_LIB="$portPackageLinksDir/openblas${secondaryArchSuffix}_devel/develop/lib/$ARCH_SUBDIR"
+		-DOpenBLAS_LIB="$portPackageLinksDir/openblas${secondaryArchSuffix}_devel/develop/lib/$ARCH_SUBDIR" \
+		-DPYTHON3_PACKAGES_PATH="$prefix/lib/python$pythonVersion/vendor-packages"
 
 	make $jobArgs
 }
@@ -268,6 +279,10 @@ INSTALL()
 		$developDir \
 		$libDir/cmake
 
+	# python package
+	packageEntries python \
+		$prefix/lib/python*
+
 	# tools package
 	packageEntries tools \
 		$binDir