xxx

python/py-setuptools_scm/files/patch-setup.cfg

@@ -0,0 +1,19 @@
+Avoid errors during runtime if devel/py-packaging is not present.
+
+The package is only required in "_version_cls.py" and falls back to
+devel/py-setuptools (via "try ... except") if it's not available.
+
+This is a workaround to remedy issues with upgrade runs that also update
+devel/py-{packaging,pyparsing} in environments where devel/py-setuptools_scm is
+already present.
+
+--- setup.cfg.orig	2021-12-05 20:43:43 UTC
++++ setup.cfg
+@@ -27,7 +27,6 @@ classifiers = 
+ [options]
+ packages = find:
+ install_requires = 
+-	packaging>=20.0
+ 	setuptools
+ 	tomli>=1.0.0 # keep in sync
+ python_requires = >=3.6