- reference github tarball

- cleanup dependencies
- add the requires as buildrequires to guarantee they are available

OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-pelican?expand=0&rev=48

python-pelican.spec

@@ -16,7 +16,7 @@
 #
 
 
-%define skip_python2 1
+%{?sle15_python_module_pythons}
 Name:           python-pelican
 Version:        4.9.1
 Release:        0
@@ -24,13 +24,10 @@ Summary:        A tool to generate a static blog from reStructuredText or Markdo
 License:        AGPL-3.0-only
 Group:          Development/Languages/Python
 URL:            https://getpelican.com/
-# Use the source instead of the pypi release for the tests
-# Source:         https://github.com/getpelican/pelican/archive/%%{version}.tar.gz
-Source:         pelican-%{version}.tar.gz
+Source:         https://github.com/getpelican/pelican/archive/refs/tags/%{version}.tar.gz#/pelican-%{version}-gh.tar.gz
 BuildRequires:  %{python_module Jinja2 >= 3.1.2}
 BuildRequires:  %{python_module Pygments >= 2.16.1}
 BuildRequires:  %{python_module Unidecode >= 1.3.7}
-BuildRequires:  %{python_module backports-zoneinfo >= 0.2.1 if %python_base < 3.9}
 BuildRequires:  %{python_module base >= 3.8.1}
 BuildRequires:  %{python_module blinker >= 1.7.0}
 BuildRequires:  %{python_module docutils >= 0.20.1}
@@ -55,9 +52,6 @@ Requires:       python-ordered-set >= 4.1.0
 Requires:       python-python-dateutil >= 2.8.2
 Requires:       python-rich >= 13.6.0
 Requires:       python-watchfiles >= 0.21.0
-%if "%{python_flavor}" < "python39"
-Requires:       python-backports-zoneinfo >= 0.2.1
-%endif
 Requires(post): update-alternatives
 Requires(postun):update-alternatives
 Suggests:       asciidoc