Resolves issue #621

pyramid/config/util.py

@@ -1,6 +1,8 @@
 import re
 import traceback
 
+from functools import update_wrapper
+
 from zope.interface import implementer
 
 from pyramid.interfaces import IActionInfo
@@ -59,9 +61,10 @@ def wrapper(self, *arg, **kw):
         finally:
             self._ainfo.pop()
         return result
-    wrapper.__name__ = wrapped.__name__
-    wrapper.__doc__ = wrapped.__doc__
-    wrapper.__docobj__ = wrapped # for sphinx
+
+    if hasattr(wrapped, '__name__'):
+        update_wrapper(wrapper, wrapped)
+    wrapper.__docobj__ = wrapped
     return wrapper
 
 def make_predicates(xhr=None, request_method=None, path_info=None,

pyramid/tests/test_config/__init__.py

@@ -43,3 +43,11 @@ def dummy_extend(config, discrim):
 def dummy_extend2(config, discrim):
     config.action(discrim, None, config.registry)
 
+from functools import partial
+dummy_partial = partial(dummy_extend, discrim='partial')
+
+class DummyCallable(object):
+    def __call__(self, config, discrim):
+        config.action(discrim, None, config.package)
+dummy_callable = DummyCallable()
+

pyramid/tests/test_config/test_init.py

@@ -1414,6 +1414,32 @@ def test_extend_with_dotted_name(self):
         self.assertEqual(action['callable'], None)
         self.assertEqual(action['args'], test_config)
 
+    def test_add_directive_with_partial(self):
+        from pyramid.tests import test_config
+        config = self.config
+        config.add_directive(
+                'dummy_partial', 'pyramid.tests.test_config.dummy_partial')
+        self.assertTrue(hasattr(config, 'dummy_partial'))
+        config.dummy_partial()
+        after = config.action_state
+        action = after.actions[-1]
+        self.assertEqual(action['discriminator'], 'partial')
+        self.assertEqual(action['callable'], None)
+        self.assertEqual(action['args'], test_config)
+
+    def test_add_directive_with_custom_callable(self):
+        from pyramid.tests import test_config
+        config = self.config
+        config.add_directive(
+                'dummy_callable', 'pyramid.tests.test_config.dummy_callable')
+        self.assertTrue(hasattr(config, 'dummy_callable'))
+        config.dummy_callable('discrim')
+        after = config.action_state
+        action = after.actions[-1]
+        self.assertEqual(action['discriminator'], 'discrim')
+        self.assertEqual(action['callable'], None)
+        self.assertEqual(action['args'], test_config)
+
     def test_extend_with_python_callable(self):
         from pyramid.tests import test_config
         config = self.config