diff --color -r -u a/setup.cfg b/setup.cfg
--- a/setup.cfg	2024-02-21 05:58:03.000000000 +0100
+++ b/setup.cfg	2024-07-08 18:27:14.404495000 +0200
@@ -51,6 +51,9 @@
 packages = find:
 python_requires = >=3.7
 
+[options.packages.find]
+exclude = test*
+
 [options.package_data]
 * =
     contrib/flask.sh