Update Python 2 dependency declarations to new packaging standards

python-virtualenv.spec

@@ -8,7 +8,7 @@
 
 Name:           python-virtualenv
 Version:        15.1.0
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        Tool to create isolated Python environments
 
 Group:          Development/Languages
@@ -25,7 +25,7 @@ BuildArch:      noarch
 BuildRequires:  python2-devel
 
 %if 0%{?with_python3}
-BuildRequires:  python-sphinx
+BuildRequires:  python2-sphinx
 BuildRequires:  python3-devel
 BuildRequires:  python3-sphinx
 %endif # with_python3
@@ -139,6 +139,10 @@ cp %{buildroot}/%{_bindir}/virtualenv %{buildroot}/%{_bindir}/virtualenv-2
 
 
 %changelog
+* Wed Feb 28 2018 Iryna Shcherbina <ishcherb@redhat.com> - 15.1.0-5
+- Update Python 2 dependency declarations to new packaging standards
+  (See https://fedoraproject.org/wiki/FinalizingFedoraSwitchtoPython3)
+
 * Fri Feb 09 2018 Fedora Release Engineering <releng@fedoraproject.org> - 15.1.0-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild