Small fixes so the docs build.

Some of these are quick hacks that disable parts of the API build so we need
to revisit them, but at least we can build nightly docs again.

IPython/config/loader.py

@@ -274,8 +274,8 b' class CommandLineConfigLoader(ConfigLoader):'
     """
 
 
-class NoConfigDefault(object): pass
-NoConfigDefault = NoConfigDefault()
+class __NoConfigDefault(object): pass
+NoConfigDefault = __NoConfigDefault()
 
 
 class ArgParseConfigLoader(CommandLineConfigLoader):

IPython/core/builtin_trap.py

@@ -31,8 +31,8 b' from IPython.utils.autoattr import auto_attr'
 #-----------------------------------------------------------------------------
 
 
-class BuiltinUndefined(object): pass
-BuiltinUndefined = BuiltinUndefined()
+class __BuiltinUndefined(object): pass
+BuiltinUndefined = __BuiltinUndefined()
 
 
 class BuiltinTrap(Component):

IPython/core/component.py

@@ -157,7 +157,7 b' def masquerade_as(instance, cls):'
     cls.register_instance(instance)
 
 
-class ComponentNameGenerator(object):
+class __ComponentNameGenerator(object):
     """A Singleton to generate unique component names."""
 
     def __init__(self, prefix):
@@ -170,7 +170,7 b' class ComponentNameGenerator(object):'
         return "%s%s" % (self.prefix, count)
 
 
-ComponentNameGenerator = ComponentNameGenerator('ipython.component')
+ComponentNameGenerator = __ComponentNameGenerator('ipython.component')
 
 
 class MetaComponent(MetaHasTraitlets, MetaComponentTracker):

docs/autogen_api.py

@@ -29,7 +29,29 b" if __name__ == '__main__':"
                                         r'\.frontend',
                                         r'\.gui'
                                         ]
+
     docwriter.module_skip_patterns += [ r'\.core\.fakemodule',
+                                        
+                                        # XXX These need fixing, disabling for
+                                        # now but we need to figure out why
+                                        # they are breaking.  Error from sphinx
+                                        # for each group copied below
+                                        
+                                        # AttributeError: __abstractmethods__
+                                        r'\.core\.component',
+                                        r'\.utils\.traitlets',
+        
+                                        # AttributeError: __provides__
+                                        r'\.kernel\.clusterdir',
+                                        r'\.kernel\.configobjfactory',
+                                        r'\.kernel\.fcutil',
+                                        r'\.kernel\.ipcontrollerapp',
+                                        r'\.kernel\.launcher',
+                                        r'\.kernel\.task',
+                                        r'\.kernel\.winhpcjob',
+                                        r'\.testing\.util',
+    
+                                        # Keeping these disabled is OK
                                         r'\.cocoa',
                                         r'\.ipdoctest',
                                         r'\.Gnuplot',