File project.diff of Package python-black

--- python-black.changes.orig
+++ python-black.changes
@@ -1,4 +1,9 @@
 -------------------------------------------------------------------
+Sun Oct  4 13:20:40 UTC 2020 - Hans-Peter Jansen <hpj@urpla.net>
+
+- Build requires python3-dataclasses below 3.7
+
+-------------------------------------------------------------------
 Fri Sep  4 12:19:10 UTC 2020 - John Vandenberg <jayvdb@gmail.com>
 
 - Include change log and docs in package
--- python-black.spec.orig
+++ python-black.spec
@@ -55,6 +55,12 @@ Requires:       python-typed-ast >= 1.4.
 Requires:       python-typing_extensions
 Requires(post): update-alternatives
 Requires(postun): update-alternatives
+%if 0%{?py3_dataclasses}
+BuildRequires:  python3-dataclasses
+%endif
+%if 0%{?py3_dataclasses}
+Requires:       python-dataclasses
+%endif
 BuildArch:      noarch
 %python_subpackages