The module is built as file only

ydiff.spec.in

@@ -31,7 +31,9 @@ Python library that implements API used by ydiff tool.
 %{_bindir}/ydiff
 
 %files -n python2-%{name}
-%{python2_sitelib}/%{name}/
+%{python2_sitelib}/%{name}.py
+%{python2_sitelib}/%{name}.pyc
+%{python2_sitelib}/%{name}.pyo
 %{python2_sitelib}/%{name}-*.egg-info
 
 %changelog