Declare i18n extra to map the upstream package structure

Stop requiring the explicit runtime dependencies when building with
Python 3. They're read from metadata.

python-jinja2.spec

@@ -2,7 +2,7 @@
 
 Name:           python-jinja2
 Version:        3.0.1
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        General purpose template engine
 License:        BSD
 URL:            https://palletsprojects.com/p/jinja/
@@ -91,10 +91,6 @@ BuildRequires:  python3-Pallets-Sphinx-Themes
 BuildRequires:  python3-sphinxcontrib-log-cabinet
 BuildRequires:  python3-sphinx-issues
 %endif
-Requires:       python3-babel >= 0.8
-Requires:       python3-markupsafe >= 0.23
-Requires:       python3-setuptools
-%{?python_provide:%python_provide python3-jinja2}
 
 %description -n python3-jinja2
 Jinja2 is a template engine written in pure Python.  It provides a
@@ -106,6 +102,8 @@ as Smarty or Django, you should feel right at home with Jinja2. It's
 both designer and developer friendly by sticking to Python's
 principles and adding functionality useful for templating
 environments.
+
+%{?python_extras_subpkg:%python_extras_subpkg -n python3-jinja2 -i%{python3_sitelib}/Jinja2-*.egg-info i18n}
 %endif # with python3
 
 
@@ -184,6 +182,10 @@ PYTHONPATH=$(pwd)/src %{__python3} -m pytest tests
 
 
 %changelog
+* Wed Nov 10 2021 Karolina Surma <ksurma@redhat.com> - 3.0.1-3
+- Don't explicitly declare runtime dependencies when building for Python 3
+- Declare jinja2+i18n extra to map the upstream package structure
+
 * Fri Jul 23 2021 Fedora Release Engineering <releng@fedoraproject.org> - 3.0.1-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild