pip: update recipe to version 22.3.1 (#7519)

* pip: update recipe to 22.3.1

Drop support for Python 2.x (removed from pip on version 21.0).

* pip: keep "pip" and "pip3" comands for the default Python version.

dev-python/pip/pip-22.3.1.recipe

@@ -1,11 +1,11 @@
 SUMMARY="The PyPA recommended tool for installing Python packages"
 DESCRIPTION="Install Python packages, replacement for easy_install"
 HOMEPAGE="https://pypi.python.org/pypi/pip"
-COPYRIGHT="2006-2019 Python Packaging Authority"
+COPYRIGHT="2006-2022 Python Packaging Authority"
 LICENSE="Python"
-REVISION="4"
+REVISION="1"
 SOURCE_URI="https://pypi.io/packages/source/p/pip/pip-$portVersion.tar.gz"
-CHECKSUM_SHA256="21207d76c1031e517668898a6b46a9fb1501c7a4710ef5dfd6a40ad9e6757ea7"
+CHECKSUM_SHA256="65fd48317359f3af8e593943e6ae1506b66325085ea64b706a998c6e83eeaf38"
 
 ARCHITECTURES="any"
 
@@ -20,8 +20,8 @@ BUILD_REQUIRES="
 	haiku_devel
 	"
 
-PYTHON_PACKAGES=(python python3 python38 python39 python310)
-PYTHON_VERSIONS=(2.7 3.7 3.8 3.9 3.10)
+PYTHON_PACKAGES=(python3 python38 python39 python310)
+PYTHON_VERSIONS=(3.7 3.8 3.9 3.10)
 for i in "${!PYTHON_PACKAGES[@]}"; do
 pythonPackage=${PYTHON_PACKAGES[i]}
 pythonVersion=${PYTHON_VERSIONS[$i]}
@@ -40,11 +40,10 @@ BUILD_PREREQUIRES="$BUILD_PREREQUIRES
 	cmd:python$pythonVersion"
 done
 
-PROVIDES_python="$PROVIDES_python
+# Custom PROVIDES for the default Python version (3.9 at the moment):
+PROVIDES_python39=$PROVIDES_python39"
 	cmd:pip
-	"
-REPLACES_python="
-	python_pip
+	cmd:pip3
 	"
 
 INSTALL()
@@ -61,10 +60,11 @@ INSTALL()
 		$python setup.py build install \
 			--root=/ --prefix=$prefix
 
-		if [ $pythonPackage != python ]; then
+		# Do not remove pip/pip3 for the default python version (3.9 at the moment).
+		if [ $pythonPackage != python39 ]; then
 			rm $binDir/{pip,pip3}
 		fi
-		rm $binDir/pip${pythonVersion%%.*} || true
+
 		packageEntries  $pythonPackage \
 			$prefix/lib/python* \
 			$binDir