Accepting request 1155878 from home:glaubitz:branches:devel:languages:python

- Switch package to modern Python Stack on SLE-15
  + Add %{?sle15_python_module_pythons}
  + Drop %{?!python_module:%define python_module() python-%{**} python3-%{**}}
  + Drop %define skip_python2 1
  + Drop support for older Python 3.x versions

OBS-URL: https://build.opensuse.org/request/show/1155878
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-antlr4-python3-runtime?expand=0&rev=14

python-antlr4-python3-runtime.spec

@@ -16,8 +16,7 @@
 #
 
 
-%{?!python_module:%define python_module() python-%{**} python3-%{**}}
-%define         skip_python2 1
+%{?sle15_python_module_pythons}
 Name:           python-antlr4-python3-runtime
 Version:        4.13.1
 Release:        0
@@ -34,9 +33,6 @@ BuildRequires:  python-rpm-macros
 Requires(post): update-alternatives
 Requires(postun): update-alternatives
 BuildArch:      noarch
-%if %{python3_version_nodots} < 35
-Requires:       python-typing
-%endif
 %python_subpackages
 
 %description