Conditionalize the Python 2 subpackage and don't build it on EL > 7

Some SPEC file modernizations.

python-freezegun.spec

@@ -1,11 +1,15 @@
-%if 0%{?fedora}
-%global with_python3 1
+%if 0%{?fedora} || 0%{?rhel} > 7
+# Enable python3 build by default
+%bcond_without python3
+%else
+%bcond_with python3
 %endif
 
-%if 0%{?rhel} && 0%{?rhel} <= 6
-%{!?__python2:        %global __python2 /usr/bin/python2}
-%{!?python2_sitelib:  %global python2_sitelib %(%{__python2} -c "from distutils.sysconfig import get_python_lib; print(get_python_lib())")}
-%{!?python2_sitearch: %global python2_sitearch %(%{__python2} -c "from distutils.sysconfig import get_python_lib; print(get_python_lib(1))")}
+%if 0%{?rhel} > 7
+# Disable python2 build by default
+%bcond_with python2
+%else
+%bcond_without python2
 %endif
 
 %global modname freezegun
@@ -13,7 +17,7 @@
 
 Name:               python-freezegun
 Version:            0.3.8
-Release:            8%{?dist}
+Release:            9%{?dist}
 Summary:            %{sum}
 
 Group:              Development/Libraries
@@ -23,6 +27,13 @@ Source0:            https://pypi.io/packages/source/f/%{modname}/%{modname}-%{ve
 
 BuildArch:          noarch
 
+%description
+freezegun is a library that allows your python tests to travel through time by
+mocking the datetime module.
+
+%if %{with python2}
+%package -n python2-freezegun
+Summary:            %{sum}
 
 BuildRequires:      python2-devel
 BuildRequires:      python2-setuptools
@@ -33,40 +44,29 @@ BuildRequires:      python2-nose
 BuildRequires:      python2-coverage
 BuildRequires:      python2-mock
 
-%if 0%{?with_python3}
-BuildRequires:      python3-devel
-BuildRequires:      python3-setuptools
-BuildRequires:      python3-six
-BuildRequires:      python3-dateutil
-BuildRequires:      python3-sure
-BuildRequires:      python3-nose
-BuildRequires:      python3-coverage
-BuildRequires:      python3-mock
-%endif
-
-%description
-freezegun is a library that allows your python tests to travel through time by
-mocking the datetime module.
-
-
-%package -n python2-freezegun
-Summary:            %{sum}
-Group:              Development/Libraries
 %{?python_provide:%python_provide python2-freezegun}
 
-# EL packages don't provide python2-foo
 Requires:           python2-six
 Requires:           python2-dateutil
 
 %description -n python2-freezegun
 freezegun is a library that allows your python tests to travel through time by
 mocking the datetime module. This is the Python 2 library.
+%endif # with python2
 
-
-%if 0%{?with_python3}
+%if %{with python3}
 %package -n python3-freezegun
 Summary:            %{sum}
-Group:              Development/Libraries
+
+BuildRequires:      python3-devel
+BuildRequires:      python3-setuptools
+BuildRequires:      python3-six
+BuildRequires:      python3-dateutil
+BuildRequires:      python3-sure
+BuildRequires:      python3-nose
+BuildRequires:      python3-coverage
+BuildRequires:      python3-mock
+
 %{?python_provide:%python_provide python3-freezegun}
 
 Requires:           python3-six
@@ -75,56 +75,67 @@ Requires:           python3-dateutil
 %description -n python3-freezegun
 freezegun is a library that allows your python tests to travel through time by
 mocking the datetime module. This is the Python 3 library.
-%endif
+%endif # with python3
 
 %prep
 %setup -q -n %{modname}-%{version}
 
 # Remove bundled egg-info in case it exists
 rm -rf %{modname}.egg-info
-%if 0%{?with_python3}
+%if %{with python3}
 rm -rf %{py3dir}
 cp -a . %{py3dir}
-%endif
+%endif # with python3
 
 %build
-%{__python2} setup.py build
-%if 0%{?with_python3}
+%if %{with python2}
+%py2_build
+%endif # with python2
+%if %{with python3}
 pushd %{py3dir}
-%{__python3} setup.py build
+%py3_build
 popd
-%endif
+%endif # with python3
 
 %install
-%if 0%{?with_python3}
+%if %{with python3}
 pushd %{py3dir}
-%{__python3} setup.py install -O1 --skip-build --root=%{buildroot}
+%py3_install
 popd
-%endif
-%{__python2} setup.py install -O1 --skip-build --root=%{buildroot}
+%endif # with python3
+%if %{with python2}
+%py2_install
+%endif # with python2
 
 %check
-%if %with python3
+%if %{with python3}
 pushd %{py3dir}
 nosetests-%{python3_version} tests/
 popd
-%endif
+%endif # with python3
 
+%if %{with python2}
 nosetests-%{python2_version} tests/
+%endif # with python2
 
+%if %{with python2}
 %files -n python2-freezegun
 %doc README.rst LICENSE
 %{python2_sitelib}/%{modname}/
 %{python2_sitelib}/%{modname}-%{version}*
+%endif # with python2
 
-%if 0%{?with_python3}
+%if %{with python3}
 %files -n python3-freezegun
 %doc README.rst LICENSE
 %{python3_sitelib}/%{modname}/
 %{python3_sitelib}/%{modname}-%{version}-*
-%endif
+%endif # with python3
 
 %changelog
+* Thu Apr 05 2018 Charalampos Stratakis <cstratak@redhat.com> - 0.3.8-9
+- Conditionalize the Python 2 subpackage and don't build it on EL > 7
+
 * Wed Feb 21 2018 Iryna Shcherbina <ishcherb@redhat.com> - 0.3.8-8
 - Update Python 2 dependency declarations to new packaging standards
   (See https://fedoraproject.org/wiki/FinalizingFedoraSwitchtoPython3)