diff --git a/rules/python/shared/lang/instance.yml b/rules/python/shared/lang/instance.yml
new file mode 100644
index 00000000..82219d6a
--- /dev/null
+++ b/rules/python/shared/lang/instance.yml
@@ -0,0 +1,13 @@
+type: shared
+languages:
+  - python
+patterns:
+  - $<CLASS>($<...>)
+  - |
+    class $<_>($<CLASS>):
+      def $<_>($<!>self$<...>):
+  - |
+    def $<_>($<...>$<!>$<_>: $<CLASS>$<...>):
+metadata:
+  description: "Python CLASS instance"
+  id: python_shared_lang_instance