python-jsonschema: use alternatives

srcpkgs/python-jsonschema/template

@@ -15,6 +15,7 @@ homepage="https://github.com/Julian/jsonschema"
 license="MIT"
 distfiles="${PYPI_SITE}/j/jsonschema/jsonschema-${version}.tar.gz"
 checksum=36673ac378feed3daa5956276a829699056523d7961027911f064b52255ead41
+alternatives="jsonschema:jsonschema:/usr/bin/jsonschema2.7"
 
 pre_build() {
 	sed -i setup.py \
@@ -24,8 +25,6 @@ pre_build() {
 		version=\"${version}\","
 }
 post_install() {
-	cp -f ${DESTDIR}/usr/bin/jsonschema{,3.4}
-	replace_interpreter python ${DESTDIR}/usr/bin/jsonschema
 	vlicense COPYING LICENSE
 }
 
@@ -35,6 +34,7 @@ python3.4-jsonschema_package() {
 	pycompile_version="3.4"
 	pycompile_module="jsonschema"
 	short_desc="${short_desc/Python2/Python3.4}"
+	alternatives="jsonschema:jsonschema:/usr/bin/jsonschema3.4"
 	pkg_install() {
 		vmove usr/bin/jsonschema3.4
 		vmove usr/lib/python3.4