every subscriber predicate must accept only one arg, so codify that

CHANGES.rst

@@ -4,12 +4,12 @@ unreleased
 Features
 --------
 
-- Pyramid adds support for Python 3.11.
+- Add support for Python 3.11 and 3.12.
 
 - Added HTTP 418 error code via `pyramid.httpexceptions.HTTPImATeapot`.
   See https://github.com/Pylons/pyramid/pull/3667
 
-- Coverage reports in tests based on Python 3.11 instead of Python 3.8.
+- Coverage reports in tests based on Python 3.12 instead of Python 3.8.
 
 Bug Fixes
 ---------
@@ -28,10 +28,12 @@ Bug Fixes
 Backward Incompatibilities
 --------------------------
 
+- Drop support for Python 3.6.
+
 - Requests to a static_view are no longer allowed to contain a null-byte in any
   part of the path segment.
-- Pyramid is no longer tested on, nor supports Python 3.6
-- Pyramid drops support for l*gettext() methods in the i18n module.
+
+- Drop support for l*gettext() methods in the i18n module.
   These have been deprecated in Python's gettext module since 3.8, and
   removed in Python 3.11.
 

src/pyramid/config/adapters.py

@@ -76,15 +76,8 @@ def register():
         return subscriber
 
     def _derive_predicate(self, predicate):
-        if eventonly(predicate):
-
-            def derived_predicate(*arg):
-                return predicate(arg[0])
-
-            # seems pointless to try to fix __doc__, __module__, etc as
-            # predicate will invariably be an instance
-        else:
-            derived_predicate = predicate
+        def derived_predicate(*arg):
+            return predicate(arg[0])
 
         return derived_predicate