diff --git a/Include/Python.h b/Include/Python.h
index f9c33d4..9757a70 100644
--- a/Include/Python.h
+++ b/Include/Python.h
@@ -89,6 +89,7 @@
 #include "sliceobject.h"
 #include "cellobject.h"
 #include "iterobject.h"
+#include "descrobject.h"
 
 #include "codecs.h"
 #include "pyerrors.h"
diff --git a/Include/abstract.h b/Include/abstract.h
index 9082edb..799438e 100644
--- a/Include/abstract.h
+++ b/Include/abstract.h
@@ -294,6 +294,17 @@
        */
 
 
+
+     DL_IMPORT(PyObject *) PyObject_Call(PyObject *callable_object,
+					 PyObject *args, PyObject *kw);
+
+       /*
+
+	 Call a callable Python object, callable_object, with
+	 arguments and keywords arguments.  The 'args' argument can not be
+	 NULL, but the 'kw' argument can be NULL.
+
+       */
      
      DL_IMPORT(PyObject *) PyObject_CallObject(PyObject *callable_object,
                                                PyObject *args);
diff --git a/Include/ceval.h b/Include/ceval.h
index 0fc5cba..ae4d858 100644
--- a/Include/ceval.h
+++ b/Include/ceval.h
@@ -45,6 +45,9 @@
 DL_IMPORT(void) Py_SetRecursionLimit(int);
 DL_IMPORT(int) Py_GetRecursionLimit(void);
 
+DL_IMPORT(char *) PyEval_GetFuncName(PyObject *);
+DL_IMPORT(char *) PyEval_GetFuncDesc(PyObject *);
+
 /* Interface for threads.
 
    A module that plans to do a blocking system call (or something else
diff --git a/Include/classobject.h b/Include/classobject.h
index 3b25c74..3bd535e 100644
--- a/Include/classobject.h
+++ b/Include/classobject.h
@@ -47,10 +47,6 @@
 extern DL_IMPORT(PyObject *) PyInstance_NewRaw(PyObject *, PyObject *);
 extern DL_IMPORT(PyObject *) PyMethod_New(PyObject *, PyObject *, PyObject *);
 
-extern DL_IMPORT(PyObject *) PyMethod_Function(PyObject *);
-extern DL_IMPORT(PyObject *) PyMethod_Self(PyObject *);
-extern DL_IMPORT(PyObject *) PyMethod_Class(PyObject *);
-
 /* Macros for direct access to these values. Type checks are *not*
    done, so use with care. */
 #define PyMethod_GET_FUNCTION(meth) \
diff --git a/Include/descrobject.h b/Include/descrobject.h
new file mode 100644
index 0000000..b6fc521
--- /dev/null
+++ b/Include/descrobject.h
@@ -0,0 +1,32 @@
+/* XXX getter, setter, getsetlist and wrapperbase need 'Py'-prefixed names */
+
+typedef PyObject *(*getter)(PyObject *, void *);
+typedef int (*setter)(PyObject *, PyObject *, void *);
+
+struct getsetlist {
+	char *name;
+	getter get;
+	setter set;
+	void *closure;
+};
+
+typedef PyObject *(*wrapperfunc)(PyObject *self, PyObject *args,
+				 void *wrapped);
+
+struct wrapperbase {
+	char *name;
+	wrapperfunc wrapper;
+	char *doc;
+};
+
+extern DL_IMPORT(PyObject *) PyDescr_NewMethod(PyTypeObject *, PyMethodDef *);
+extern DL_IMPORT(PyObject *) PyDescr_NewMember(PyTypeObject *,
+					       struct memberlist *);
+extern DL_IMPORT(PyObject *) PyDescr_NewGetSet(PyTypeObject *,
+					       struct getsetlist *);
+extern DL_IMPORT(PyObject *) PyDescr_NewWrapper(PyTypeObject *,
+						struct wrapperbase *, void *);
+extern DL_IMPORT(int) PyDescr_IsData(PyObject *);
+
+extern DL_IMPORT(PyObject *) PyDictProxy_New(PyObject *);
+extern DL_IMPORT(PyObject *) PyWrapper_New(PyObject *, PyObject *);
diff --git a/Include/dictobject.h b/Include/dictobject.h
index 4f5f94a..abc8ed5 100644
--- a/Include/dictobject.h
+++ b/Include/dictobject.h
@@ -7,9 +7,83 @@
 
 /* Dictionary object type -- mapping from hashable object to object */
 
+/*
+There are three kinds of slots in the table:
+
+1. Unused.  me_key == me_value == NULL
+   Does not hold an active (key, value) pair now and never did.  Unused can
+   transition to Active upon key insertion.  This is the only case in which
+   me_key is NULL, and is each slot's initial state.
+
+2. Active.  me_key != NULL and me_key != dummy and me_value != NULL
+   Holds an active (key, value) pair.  Active can transition to Dummy upon
+   key deletion.  This is the only case in which me_value != NULL.
+
+3. Dummy.  me_key == dummy and me_value == NULL
+   Previously held an active (key, value) pair, but that was deleted and an
+   active pair has not yet overwritten the slot.  Dummy can transition to
+   Active upon key insertion.  Dummy slots cannot be made Unused again
+   (cannot have me_key set to NULL), else the probe sequence in case of
+   collision would have no way to know they were once active.
+
+Note: .popitem() abuses the me_hash field of an Unused or Dummy slot to
+hold a search finger.  The me_hash field of Unused or Dummy slots has no
+meaning otherwise.
+*/
+
+/* PyDict_MINSIZE is the minimum size of a dictionary.  This many slots are
+ * allocated directly in the dict object (in the ma_smalltable member).
+ * It must be a power of 2, and at least 4.  8 allows dicts with no more
+ * than 5 active entries to live in ma_smalltable (and so avoid an
+ * additional malloc); instrumentation suggested this suffices for the
+ * majority of dicts (consisting mostly of usually-small instance dicts and
+ * usually-small dicts created to pass keyword arguments).
+ */
+#define PyDict_MINSIZE 8
+
+typedef struct {
+	long me_hash;      /* cached hash code of me_key */
+	PyObject *me_key;
+	PyObject *me_value;
+#ifdef USE_CACHE_ALIGNED
+	long	aligner;
+#endif
+} PyDictEntry;
+
+/*
+To ensure the lookup algorithm terminates, there must be at least one Unused
+slot (NULL key) in the table.
+The value ma_fill is the number of non-NULL keys (sum of Active and Dummy);
+ma_used is the number of non-NULL, non-dummy keys (== the number of non-NULL
+values == the number of Active items).
+To avoid slowing down lookups on a near-full table, we resize the table when
+it's two-thirds full.
+*/
+typedef struct _dictobject PyDictObject;
+struct _dictobject {
+	PyObject_HEAD
+	int ma_fill;  /* # Active + # Dummy */
+	int ma_used;  /* # Active */
+
+	/* The table contains ma_mask + 1 slots, and that's a power of 2.
+	 * We store the mask instead of the size because the mask is more
+	 * frequently needed.
+	 */
+	int ma_mask;
+
+	/* ma_table points to ma_smalltable for small tables, else to
+	 * additional malloc'ed memory.  ma_table is never NULL!  This rule
+	 * saves repeated runtime null-tests in the workhorse getitem and
+	 * setitem calls.
+	 */
+	PyDictEntry *ma_table;
+	PyDictEntry *(*ma_lookup)(PyDictObject *mp, PyObject *key, long hash);
+	PyDictEntry ma_smalltable[PyDict_MINSIZE];
+};
+
 extern DL_IMPORT(PyTypeObject) PyDict_Type;
 
-#define PyDict_Check(op) ((op)->ob_type == &PyDict_Type)
+#define PyDict_Check(op) PyObject_TypeCheck(op, &PyDict_Type)
 
 extern DL_IMPORT(PyObject *) PyDict_New(void);
 extern DL_IMPORT(PyObject *) PyDict_GetItem(PyObject *mp, PyObject *key);
@@ -23,6 +97,7 @@
 extern DL_IMPORT(PyObject *) PyDict_Items(PyObject *mp);
 extern DL_IMPORT(int) PyDict_Size(PyObject *mp);
 extern DL_IMPORT(PyObject *) PyDict_Copy(PyObject *mp);
+extern DL_IMPORT(int) PyDict_Update(PyObject *mp, PyObject *other);
 
 
 extern DL_IMPORT(PyObject *) PyDict_GetItemString(PyObject *dp, char *key);
diff --git a/Include/eval.h b/Include/eval.h
index 2a45009..f9334a7 100644
--- a/Include/eval.h
+++ b/Include/eval.h
@@ -9,6 +9,14 @@
 
 DL_IMPORT(PyObject *) PyEval_EvalCode(PyCodeObject *, PyObject *, PyObject *);
 
+DL_IMPORT(PyObject *) PyEval_EvalCodeEx(PyCodeObject *co,
+					PyObject *globals,
+					PyObject *locals,
+					PyObject **args, int argc,
+					PyObject **kwds, int kwdc,
+					PyObject **defs, int defc,
+					PyObject *closure);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/Include/funcobject.h b/Include/funcobject.h
index 8cedeb7..6b1e389 100644
--- a/Include/funcobject.h
+++ b/Include/funcobject.h
@@ -42,6 +42,13 @@
 #define PyFunction_GET_CLOSURE(func) \
 	(((PyFunctionObject *)func) -> func_closure)
 
+/* The classmethod and staticmethod types lives here, too */
+extern DL_IMPORT(PyTypeObject) PyClassMethod_Type;
+extern DL_IMPORT(PyTypeObject) PyStaticMethod_Type;
+
+extern DL_IMPORT(PyObject *) PyClassMethod_New(PyObject *);
+extern DL_IMPORT(PyObject *) PyStaticMethod_New(PyObject *);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/Include/listobject.h b/Include/listobject.h
index 73ac724..af1368c 100644
--- a/Include/listobject.h
+++ b/Include/listobject.h
@@ -26,7 +26,7 @@
 
 extern DL_IMPORT(PyTypeObject) PyList_Type;
 
-#define PyList_Check(op) ((op)->ob_type == &PyList_Type)
+#define PyList_Check(op) PyObject_TypeCheck(op, &PyList_Type)
 
 extern DL_IMPORT(PyObject *) PyList_New(int size);
 extern DL_IMPORT(int) PyList_Size(PyObject *);
diff --git a/Include/modsupport.h b/Include/modsupport.h
index 4a40499..8ef343c 100644
--- a/Include/modsupport.h
+++ b/Include/modsupport.h
@@ -22,8 +22,8 @@
 extern DL_IMPORT(int) PyModule_AddIntConstant(PyObject *, char *, long);
 extern DL_IMPORT(int) PyModule_AddStringConstant(PyObject *, char *, char *);
 
-#define PYTHON_API_VERSION 1010
-#define PYTHON_API_STRING "1010"
+#define PYTHON_API_VERSION 1011
+#define PYTHON_API_STRING "1011"
 /* The API version is maintained (independently from the Python version)
    so we can detect mismatches between the interpreter and dynamically
    loaded modules.  These are diagnosed by an error message but
@@ -37,6 +37,8 @@
    Please add a line or two to the top of this log for each API
    version change:
 
+   17-Jul-2001	GvR	1011	Descr-branch, just to be on the safe side
+
    25-Jan-2001  FLD     1010    Parameters added to PyCode_New() and
                                 PyFrame_New(); Python 2.1a2
 
diff --git a/Include/object.h b/Include/object.h
index 0765748..d81d4c2 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -202,6 +202,11 @@
 typedef PyObject *(*richcmpfunc) (PyObject *, PyObject *, int);
 typedef PyObject *(*getiterfunc) (PyObject *);
 typedef PyObject *(*iternextfunc) (PyObject *);
+typedef PyObject *(*descrgetfunc) (PyObject *, PyObject *, PyObject *);
+typedef int (*descrsetfunc) (PyObject *, PyObject *, PyObject *);
+typedef int (*initproc)(PyObject *, PyObject *, PyObject *);
+typedef PyObject *(*newfunc)(struct _typeobject *, PyObject *, PyObject *);
+typedef PyObject *(*allocfunc)(struct _typeobject *, int);
 
 typedef struct _typeobject {
 	PyObject_VAR_HEAD
@@ -255,18 +260,48 @@
 	getiterfunc tp_iter;
 	iternextfunc tp_iternext;
 
+	/* Attribute descriptor and subclassing stuff */
+	struct PyMethodDef *tp_methods;
+	struct memberlist *tp_members;
+	struct getsetlist *tp_getset;
+	struct _typeobject *tp_base;
+	PyObject *tp_dict;
+	descrgetfunc tp_descr_get;
+	descrsetfunc tp_descr_set;
+	long tp_dictoffset;
+	initproc tp_init;
+	allocfunc tp_alloc;
+	newfunc tp_new;
+	destructor tp_free; /* Low-level free-memory routine */
+	PyObject *tp_bases;
+	PyObject *tp_mro; /* method resolution order */
+	PyObject *tp_defined;
+
 #ifdef COUNT_ALLOCS
 	/* these must be last and never explicitly initialized */
-	int tp_alloc;
-	int tp_free;
+	int tp_allocs;
+	int tp_frees;
 	int tp_maxalloc;
 	struct _typeobject *tp_next;
 #endif
 } PyTypeObject;
 
-extern DL_IMPORT(PyTypeObject) PyType_Type; /* The type of type objects */
 
-#define PyType_Check(op) ((op)->ob_type == &PyType_Type)
+/* Generic type check */
+extern DL_IMPORT(int) PyType_IsSubtype(PyTypeObject *, PyTypeObject *);
+#define PyObject_TypeCheck(ob, tp) \
+	((ob)->ob_type == (tp) || PyType_IsSubtype((ob)->ob_type, (tp)))
+
+extern DL_IMPORT(PyTypeObject) PyType_Type; /* Metatype */
+extern DL_IMPORT(PyTypeObject) PyBaseObject_Type; /* Most base object type */
+
+#define PyType_Check(op) PyObject_TypeCheck(op, &PyType_Type)
+
+extern DL_IMPORT(int) PyType_InitDict(PyTypeObject *);
+extern DL_IMPORT(PyObject *) PyType_GenericAlloc(PyTypeObject *, int);
+extern DL_IMPORT(PyObject *) PyType_GenericNew(PyTypeObject *,
+					       PyObject *, PyObject *);
+extern DL_IMPORT(PyObject *) _PyType_Lookup(PyTypeObject *, PyObject *);
 
 /* Generic operations on objects */
 extern DL_IMPORT(int) PyObject_Print(PyObject *, FILE *, int);
@@ -283,6 +318,10 @@
 extern DL_IMPORT(PyObject *) PyObject_GetAttr(PyObject *, PyObject *);
 extern DL_IMPORT(int) PyObject_SetAttr(PyObject *, PyObject *, PyObject *);
 extern DL_IMPORT(int) PyObject_HasAttr(PyObject *, PyObject *);
+extern DL_IMPORT(PyObject **) _PyObject_GetDictPtr(PyObject *);
+extern DL_IMPORT(PyObject *) PyObject_GenericGetAttr(PyObject *, PyObject *);
+extern DL_IMPORT(int) PyObject_GenericSetAttr(PyObject *,
+					      PyObject *, PyObject *);
 extern DL_IMPORT(long) PyObject_Hash(PyObject *);
 extern DL_IMPORT(int) PyObject_IsTrue(PyObject *);
 extern DL_IMPORT(int) PyObject_Not(PyObject *);
@@ -357,6 +396,18 @@
 /* tp_iter is defined */
 #define Py_TPFLAGS_HAVE_ITER (1L<<7)
 
+/* Experimental stuff for healing the type/class split */
+#define Py_TPFLAGS_HAVE_CLASS (1L<<8)
+
+/* Set if the type object is dynamically allocated */
+#define Py_TPFLAGS_HEAPTYPE (1L<<9)
+
+/* Set if the type allows subclassing */
+#define Py_TPFLAGS_BASETYPE (1L<<10)
+
+/* Set if the type's __dict__ may change */
+#define Py_TPFLAGS_DYNAMICTYPE (1L<<11)
+
 #define Py_TPFLAGS_DEFAULT  ( \
                              Py_TPFLAGS_HAVE_GETCHARBUFFER | \
                              Py_TPFLAGS_HAVE_SEQUENCE_IN | \
@@ -364,6 +415,7 @@
                              Py_TPFLAGS_HAVE_RICHCOMPARE | \
                              Py_TPFLAGS_HAVE_WEAKREFS | \
                              Py_TPFLAGS_HAVE_ITER | \
+                             Py_TPFLAGS_HAVE_CLASS | \
                             0)
 
 #define PyType_HasFeature(t,f)  (((t)->tp_flags & (f)) != 0)
@@ -412,8 +464,8 @@
 
 #ifndef Py_TRACE_REFS
 #ifdef COUNT_ALLOCS
-#define _Py_Dealloc(op) ((op)->ob_type->tp_free++, (*(op)->ob_type->tp_dealloc)((PyObject *)(op)))
-#define _Py_ForgetReference(op) ((op)->ob_type->tp_free++)
+#define _Py_Dealloc(op) ((op)->ob_type->tp_frees++, (*(op)->ob_type->tp_dealloc)((PyObject *)(op)))
+#define _Py_ForgetReference(op) ((op)->ob_type->tp_frees++)
 #else /* !COUNT_ALLOCS */
 #define _Py_Dealloc(op) (*(op)->ob_type->tp_dealloc)((PyObject *)(op))
 #define _Py_ForgetReference(op) /*empty*/
diff --git a/Include/objimpl.h b/Include/objimpl.h
index 4aa38d5..18cece8 100644
--- a/Include/objimpl.h
+++ b/Include/objimpl.h
@@ -236,7 +236,13 @@
 #define PyObject_GC_Fini(op)
 #define PyObject_AS_GC(op) (op)
 #define PyObject_FROM_GC(op) (op)
- 
+#define PyType_IS_GC(t) 0
+#define PyObject_IS_GC(o) 0
+#define PyObject_AS_GC(o) (o)
+#define PyObject_FROM_GC(o) (o)
+#define PyType_BASICSIZE(t) ((t)->tp_basicsize)
+#define PyType_SET_BASICSIZE(t, s) ((t)->tp_basicsize = (s))
+
 #else
 
 /* Add the object into the container set */
@@ -269,6 +275,13 @@
 /* Get the object given the PyGC_Head */
 #define PyObject_FROM_GC(g) ((PyObject *)(((PyGC_Head *)g)+1))
 
+/* Calculate tp_basicsize excluding PyGC_HEAD_SIZE if applicable */
+#define PyType_BASICSIZE(t) (!PyType_IS_GC(t) ? (t)->tp_basicsize : \
+			     (t)->tp_basicsize - PyGC_HEAD_SIZE)
+#define PyType_SET_BASICSIZE(t, s) (!PyType_IS_GC(t) ? \
+			((t)->tp_basicsize = (s)) : \
+			((t)->tp_basicsize  = (s) + PyGC_HEAD_SIZE))
+
 extern DL_IMPORT(void) _PyGC_Dump(PyGC_Head *);
 
 #endif /* WITH_CYCLE_GC */
diff --git a/Include/patchlevel.h b/Include/patchlevel.h
index dddc28f..85ffacb 100644
--- a/Include/patchlevel.h
+++ b/Include/patchlevel.h
@@ -23,13 +23,13 @@
 #define PY_MINOR_VERSION	2
 #define PY_MICRO_VERSION	0
 #define PY_RELEASE_LEVEL	PY_RELEASE_LEVEL_ALPHA
-#define PY_RELEASE_SERIAL	0
+#define PY_RELEASE_SERIAL	1
 
 /* Version as a string */
-#define PY_VERSION		"2.2a0"
+#define PY_VERSION		"2.2a1"
 
 /* Historic */
-#define PATCHLEVEL		"2.2a0"
+#define PATCHLEVEL		"2.2a1"
 
 /* Version as a single 4-byte hex number, e.g. 0x010502B2 == 1.5.2b2.
    Use this for numeric comparisons, e.g. #if PY_VERSION_HEX >= ... */
diff --git a/Include/pythonrun.h b/Include/pythonrun.h
index 6e9821b..7d947df 100644
--- a/Include/pythonrun.h
+++ b/Include/pythonrun.h
@@ -92,10 +92,10 @@
 DL_IMPORT(PyObject *) _PyBuiltin_Init(void);
 DL_IMPORT(PyObject *) _PySys_Init(void);
 DL_IMPORT(void) _PyImport_Init(void);
-DL_IMPORT(void) init_exceptions(void);
+DL_IMPORT(void) _PyExc_Init(void);
 
 /* Various internal finalizers */
-DL_IMPORT(void) fini_exceptions(void);
+DL_IMPORT(void) _PyExc_Fini(void);
 DL_IMPORT(void) _PyImport_Fini(void);
 DL_IMPORT(void) PyMethod_Fini(void);
 DL_IMPORT(void) PyFrame_Fini(void);