# Python 3.x
# python main version
%__python3 /usr/bin/python3
-%py3_ver %{expand:%%global py3_ver %(%{__python3} -c "import sys; print(sys.version[:3])" 2>/dev/null || echo ERROR)}%py3_ver
+%py3_ver %{expand:%%global py3_ver %(%{__python3} -c "from sys import version_info; print('{}.{}'.format(*version_info[:2]))" 2>/dev/null || echo ERROR)}%py3_ver
# directories
%py3_prefix %{expand:%%global py3_prefix %(%{__python3} -c "import sys; print(sys.prefix)" 2>/dev/null || echo ERROR)}%py3_prefix