https://fedoraproject.org/wiki/Packaging:Python
%{!?python_sitelib: %global python_sitelib %(%{__python} -c "from distutils.sysconfig import get_python_lib; print get_python_lib()")}
%{!?python_sitearch: %global python_sitearch %(%{__python} -c "from distutils.sysconfig import get_python_lib; print get_python_lib(1)")}
These no longer work with Python 3 due to "print" changes. They should be replaced with something like these that work with both Python 2 and 3 (already done in spectemplate-python.spec in rpmdevtools git):
%{!?python_sitelib: %global python_sitelib %(%{__python} -c "from distutils.sysconfig import *; import sys; sys.stdout.write(get_python_lib())")}
%{!?python_sitearch: %global python_sitearch %(%{__python} -c "from distutils.sysconfig import *; import sys; sys.stdout.write(get_python_lib(1))")}
packaging@lists.fedoraproject.org