Convert to libalternatives, bsc#1245883

python-cbor2.spec

@@ -1,7 +1,7 @@
 #
 # spec file for package python-cbor2
 #
-# Copyright (c) 2024 SUSE LLC
+# Copyright (c) 2025 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -16,6 +16,11 @@
 #
 
 
+%if 0%{?suse_version} > 1500
+%bcond_without libalternatives
+%else
+%bcond_with libalternatives
+%endif
 %{?sle15_python_module_pythons}
 Name:           python-cbor2
 Version:        5.6.5
@@ -33,8 +38,13 @@ BuildRequires:  %{python_module setuptools_scm >= 6.4}
 BuildRequires:  %{python_module wheel}
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
+%if %{with libalternatives}
+BuildRequires:  alts
+Requires:       alts
+%else
 Requires(post): update-alternatives
 Requires(postun): update-alternatives
+%endif
 %python_subpackages
 
 %description
@@ -60,6 +70,9 @@ export LANG=en_US.UTF8
 export LANG=en_US.UTF8
 %pytest_arch
 
+%pre
+%python_libalternatives_reset_alternative cbor2
+
 %post
 %python_install_alternative cbor2