diff --git a/Lib/pydoc.py b/Lib/pydoc.py
index 37616fb..fa02eda 100755
--- a/Lib/pydoc.py
+++ b/Lib/pydoc.py
@@ -137,7 +137,10 @@
     return _re_stripid.sub(r'\1', text)
 
 def _is_some_method(obj):
-    return inspect.ismethod(obj) or inspect.ismethoddescriptor(obj)
+    return (inspect.isfunction(obj) or
+            inspect.ismethod(obj) or
+            inspect.isbuiltin(obj) or
+            inspect.ismethoddescriptor(obj))
 
 def allmethods(cl):
     methods = {}