Add build-conditionals for python2/python3

python-lxml.spec

@@ -1,3 +1,6 @@
+%bcond_without python2
+%bcond_without python3
+
 %global modname lxml
 
 Name:           python-%{modname}
@@ -22,6 +25,7 @@ home page < or see our bug tracker at case you want to use the current ...
 
 %description %{_description}
 
+%if %{with python2}
 %package -n     python2-%{modname}
 Summary:        %{summary}
 BuildRequires:  python2-devel
@@ -35,7 +39,9 @@ Recommends:     python2-beautifulsoup4
 %description -n python2-%{modname} %{_description}
 
 Python 2 version.
+%endif
 
+%if %{with python3}
 %package -n     python3-%{modname}
 Summary:        %{summary}
 BuildRequires:  python3-devel
@@ -49,36 +55,56 @@ Recommends:     python3-beautifulsoup4
 %description -n python3-%{modname} %{_description}
 
 Python 3 version.
+%endif
 
 %prep
 %autosetup -n %{modname}-%{version}
 
 %build
 export WITH_CYTHON=true
+%if %{with python2}
 %py2_build
+%endif
+%if %{with python3}
 %py3_build
+%endif
 
 %install
+%if %{with python2}
 %py2_install
+%endif
+%if %{with python3}
 %py3_install
+%endif
 
 %check
+%if %{with python2}
 %{__python2} setup.py test
+%endif
+%if %{with python3}
 %{__python3} setup.py test
+%endif
 
+%if %{with python2}
 %files -n python2-%{modname}
 %license doc/licenses/ZopePublicLicense.txt LICENSES.txt
 %doc README.rst src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/readme.txt
 %{python2_sitearch}/%{modname}/
 %{python2_sitearch}/%{modname}-*.egg-info/
+%endif
 
+%if %{with python3}
 %files -n python3-%{modname}
 %license doc/licenses/ZopePublicLicense.txt LICENSES.txt
 %doc README.rst src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/readme.txt
 %{python3_sitearch}/%{modname}/
 %{python3_sitearch}/%{modname}-*.egg-info/
+%endif
 
 %changelog
+* Thu Oct  5 2017 Mikolaj Izdebski <mizdebsk@redhat.com> - 4.0.0-1
+- Add build-conditionals for python2/python3
+
 * Thu Oct 05 2017 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 4.0.0-1
 - Update to 4.0.0