diff --git a/vars/build.vars b/vars/build.vars
index 730152d..f0aa889 100644
--- a/vars/build.vars
+++ b/vars/build.vars
@@ -391,10 +391,15 @@ HOST_PACKAGES_DEPS_PREFIX="${PREFIX}";
 : ${PKG_INTLTOOL_HOST_SHA256SUM:=67c74d94196b153b774ab9f89b2fa6c6ba79352407037c8c14d5aeb334e959cd};
 : ${PKG_INTLTOOL_HOST_VERSION:=0.51.0};
 : ${PKG_INTLTOOL_HOST_URL:=https://launchpad.net/intltool/trunk/${PKG_INTLTOOL_HOST_VERSION}/+download/intltool-${PKG_INTLTOOL_HOST_VERSION}.tar.gz};
-: ${PKG_PYTHON3_HOST_SHA256SUM:=687e067d9f391da645423c7eda8205bae9d35edc0c76ef5218dcbe4cc770d0d7};
-: ${PKG_PYTHON3_HOST_VERSION:=3.5.1};
-: ${PKG_PYTHON3_HOST_URL:=https://www.python.org/ftp/python/${PKG_PYTHON3_HOST_VERSION}/Python-${PKG_PYTHON3_HOST_VERSION}.tgz};
-: ${PKG_PYTHON3_HOST_CONFIGURE_ARGS_EXTRA:="--enable-ipv6 --enable-shared --with-system-expat --with-system-ffi --without-ensurepip"};
+: ${PKG_PYTHON3_HOST_SHA256SUM:=ab6193af1921b30f587b302fe385268510e80187ca83ca82d2bfe7ab544c6f91};
+: ${PKG_PYTHON3_HOST_VERSION:=3.6.3};
+: ${PKG_PYTHON3_HOST_URL:="https://www.python.org/ftp/python/${PKG_PYTHON3_HOST_VERSION}/Python-${PKG_PYTHON3_HOST_VERSION}.tgz"};
+: ${PKG_PYTHON3_HOST_URLS_GIT:="sbpython3=${DEFAULT_GITROOT}/python/sbpython3@main"};
+: ${PKG_PYTHON3_HOST_BASE_DIR:=${BUILD_WORKDIR}/python3_host-host-${DEFAULT_TARGET}};
+: ${PKG_PYTHON3_HOST_BUILD_DIR:=build/python3};
+: ${PKG_PYTHON3_HOST_CONFIGURE:=build/sbpython3/configure};
+: ${PKG_PYTHON3_HOST_CONFIGURE_ARGS:="--source-dir=../../Python-${PKG_PYTHON3_HOST_VERSION} --prefix=${PREFIX}}"};
+: ${PKG_PYTHON3_HOST_MAKEFLAGS_INSTALL_EXTRA:="PREFIX= EXEC_PREFIX= BINDIR=/bin SBINDIR=/sbin LIBDIR=/lib INCLUDEDIR=/include OLDINCLUDEDIR=/include MANDIR=/share/man DOCDIR=/share/doc LIBEXECDIR=/libexec"};
 : ${PKG_PYTHON3_HOST_SUBDIR:=Python-${PKG_PYTHON3_HOST_VERSION}};
 : ${PKG_RUBY_HOST_SHA256SUM:=ba5ba60e5f1aa21b4ef8e9bf35b9ddb57286cb546aac4b5a28c71f459467e507};
 : ${PKG_RUBY_HOST_VERSION:=2.3.0};
diff --git a/vars/python3_host.vars b/vars/python3_host.vars
index 51705fb..f0063ef 100644
--- a/vars/python3_host.vars
+++ b/vars/python3_host.vars
@@ -2,20 +2,10 @@
 # set -o errexit -o noglob are assumed.
 #
 
-pkg_python3_host_configure_pre() {
-	ex_rtl_fileop rm "${PKG_SUBDIR}/Modules/zlib";
-};
-
-pkg_python3_host_install_make_post() {
-	if ex_rtl_fileop test "${PKG_DESTDIR}/bin/python3"; then
-		ex_rtl_fileop rm "${PKG_DESTDIR}/bin/python3";
-	fi;
-	cat > "${PKG_DESTDIR}/bin/python3" <<EOF
-#!/bin/sh
-env LD_LIBRARY_PATH="${PREFIX}/lib"	\
-	"${PREFIX}/bin/python3.5" "\${@}";
-EOF
-        chmod +x "${PKG_DESTDIR}/bin/python3";
+pkg_python3_host_fetch_git() {
+	ex_rtl_fileop rm "${PKG_BASE_DIR}/sbpython3";
+	ex_rtl_fetch_urls_git "${PKG_BASE_DIR}/build" "sbpython3=${DEFAULT_GITROOT}/python/sbpython3@main";
+	ex_pkg_state_set "${PKG_NAME}" fetch -extract;
 };
 
 # vim:filetype=sh