diff --git a/src/eval.c b/src/eval.c
index 8db2a15..25785b7 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -10157,6 +10157,62 @@
 }
 
 /*
+ * Go over all entries in "d2" and add them to "d1".
+ * When "action" is "error" then a duplicate key is an error.
+ * When "action" is "force" then a duplicate key is overwritten.
+ * Otherwise duplicate keys are ignored ("action" is "keep").
+ */
+    void
+dict_extend(d1, d2, action)
+    dict_T	*d1;
+    dict_T	*d2;
+    char_u	*action;
+{
+    dictitem_T	*di1;
+    hashitem_T	*hi2;
+    int		todo;
+
+    todo = (int)d2->dv_hashtab.ht_used;
+    for (hi2 = d2->dv_hashtab.ht_array; todo > 0; ++hi2)
+    {
+	if (!HASHITEM_EMPTY(hi2))
+	{
+	    --todo;
+	    di1 = dict_find(d1, hi2->hi_key, -1);
+	    if (d1->dv_scope != 0)
+	    {
+		/* Disallow replacing a builtin function in l: and g:.
+		 * Check the key to be valid when adding to any
+		 * scope. */
+		if (d1->dv_scope == VAR_DEF_SCOPE
+			&& HI2DI(hi2)->di_tv.v_type == VAR_FUNC
+			&& var_check_func_name(hi2->hi_key,
+							 di1 == NULL))
+		    break;
+		if (!valid_varname(hi2->hi_key))
+		    break;
+	    }
+	    if (di1 == NULL)
+	    {
+		di1 = dictitem_copy(HI2DI(hi2));
+		if (di1 != NULL && dict_add(d1, di1) == FAIL)
+		    dictitem_free(di1);
+	    }
+	    else if (*action == 'e')
+	    {
+		EMSG2(_("E737: Key already exists: %s"), hi2->hi_key);
+		break;
+	    }
+	    else if (*action == 'f' && HI2DI(hi2) != di1)
+	    {
+		clear_tv(&di1->di_tv);
+		copy_tv(&HI2DI(hi2)->di_tv, &di1->di_tv);
+	    }
+	}
+    }
+}
+
+/*
  * "extend(list, list [, idx])" function
  * "extend(dict, dict [, action])" function
  */
@@ -10206,12 +10262,9 @@
     }
     else if (argvars[0].v_type == VAR_DICT && argvars[1].v_type == VAR_DICT)
     {
-	dict_T		*d1, *d2;
-	dictitem_T	*di1;
-	char_u		*action;
-	int		i;
-	hashitem_T	*hi2;
-	int		todo;
+	dict_T	*d1, *d2;
+	char_u	*action;
+	int	i;
 
 	d1 = argvars[0].vval.v_dict;
 	d2 = argvars[1].vval.v_dict;
@@ -10238,46 +10291,7 @@
 	    else
 		action = (char_u *)"force";
 
-	    /* Go over all entries in the second dict and add them to the
-	     * first dict. */
-	    todo = (int)d2->dv_hashtab.ht_used;
-	    for (hi2 = d2->dv_hashtab.ht_array; todo > 0; ++hi2)
-	    {
-		if (!HASHITEM_EMPTY(hi2))
-		{
-		    --todo;
-		    di1 = dict_find(d1, hi2->hi_key, -1);
-		    if (d1->dv_scope != 0)
-		    {
-			/* Disallow replacing a builtin function in l: and g:.
-			 * Check the key to be valid when adding to any
-			 * scope. */
-		        if (d1->dv_scope == VAR_DEF_SCOPE
-				&& HI2DI(hi2)->di_tv.v_type == VAR_FUNC
-				&& var_check_func_name(hi2->hi_key,
-								 di1 == NULL))
-			    break;
-			if (!valid_varname(hi2->hi_key))
-			    break;
-		    }
-		    if (di1 == NULL)
-		    {
-			di1 = dictitem_copy(HI2DI(hi2));
-			if (di1 != NULL && dict_add(d1, di1) == FAIL)
-			    dictitem_free(di1);
-		    }
-		    else if (*action == 'e')
-		    {
-			EMSG2(_("E737: Key already exists: %s"), hi2->hi_key);
-			break;
-		    }
-		    else if (*action == 'f' && HI2DI(hi2) != di1)
-		    {
-			clear_tv(&di1->di_tv);
-			copy_tv(&HI2DI(hi2)->di_tv, &di1->di_tv);
-		    }
-		}
-	    }
+	    dict_extend(d1, d2, action);
 
 	    copy_tv(&argvars[0], rettv);
 	}
diff --git a/src/if_py_both.h b/src/if_py_both.h
index edae12b..e669d84 100644
--- a/src/if_py_both.h
+++ b/src/if_py_both.h
@@ -31,7 +31,7 @@
 #define INVALID_TABPAGE_VALUE ((tabpage_T *)(-1))
 
 #define DICTKEY_DECL \
-    PyObject	*dictkey_todecref;
+    PyObject	*dictkey_todecref = NULL;
 #define DICTKEY_CHECK_EMPTY(err) \
     if (*key == NUL) \
     { \
@@ -63,6 +63,7 @@
 
 static int ConvertFromPyObject(PyObject *, typval_T *);
 static int _ConvertFromPyObject(PyObject *, typval_T *, PyObject *);
+static int ConvertFromPyMapping(PyObject *, typval_T *);
 static PyObject *WindowNew(win_T *, tabpage_T *);
 static PyObject *BufferNew (buf_T *);
 static PyObject *LineToString(const char *);
@@ -877,12 +878,16 @@
     pylinkedlist_T	ref;
 } DictionaryObject;
 
+static PyObject *DictionaryUpdate(DictionaryObject *, PyObject *, PyObject *);
+
+#define NEW_DICTIONARY(dict) DictionaryNew(&DictionaryType, dict)
+
     static PyObject *
-DictionaryNew(dict_T *dict)
+DictionaryNew(PyTypeObject *subtype, dict_T *dict)
 {
     DictionaryObject	*self;
 
-    self = PyObject_NEW(DictionaryObject, &DictionaryType);
+    self = (DictionaryObject *) subtype->tp_alloc(subtype, 0);
     if (self == NULL)
 	return NULL;
     self->dict = dict;
@@ -893,6 +898,49 @@
     return (PyObject *)(self);
 }
 
+    static dict_T *
+py_dict_alloc()
+{
+    dict_T	*r;
+
+    if (!(r = dict_alloc()))
+    {
+	PyErr_NoMemory();
+	return NULL;
+    }
+    ++r->dv_refcount;
+
+    return r;
+}
+
+    static PyObject *
+DictionaryConstructor(PyTypeObject *subtype, PyObject *args, PyObject *kwargs)
+{
+    DictionaryObject	*self;
+    dict_T	*dict;
+
+    if (!(dict = py_dict_alloc()))
+	return NULL;
+
+    self = (DictionaryObject *) DictionaryNew(subtype, dict);
+
+    --dict->dv_refcount;
+
+    if (kwargs || PyTuple_Size(args))
+    {
+	PyObject	*tmp;
+	if (!(tmp = DictionaryUpdate(self, args, kwargs)))
+	{
+	    Py_DECREF(self);
+	    return NULL;
+	}
+
+	Py_DECREF(tmp);
+    }
+
+    return (PyObject *)(self);
+}
+
     static void
 DictionaryDestructor(DictionaryObject *self)
 {
@@ -918,7 +966,8 @@
 {
     if (val == NULL)
     {
-	PyErr_SetString(PyExc_AttributeError, _("Cannot delete DictionaryObject attributes"));
+	PyErr_SetString(PyExc_AttributeError,
+		_("cannot delete vim.Dictionary attributes"));
 	return -1;
     }
 
@@ -926,7 +975,7 @@
     {
 	if (self->dict->dv_lock == VAR_FIXED)
 	{
-	    PyErr_SetString(PyExc_TypeError, _("Cannot modify fixed dictionary"));
+	    PyErr_SetString(PyExc_TypeError, _("cannot modify fixed dictionary"));
 	    return -1;
 	}
 	else
@@ -943,7 +992,7 @@
     }
     else
     {
-	PyErr_SetString(PyExc_AttributeError, _("Cannot set this attribute"));
+	PyErr_SetString(PyExc_AttributeError, _("cannot set this attribute"));
 	return -1;
     }
 }
@@ -954,26 +1003,170 @@
     return ((PyInt) (self->dict->dv_hashtab.ht_used));
 }
 
+#define DICT_FLAG_HAS_DEFAULT	0x01
+#define DICT_FLAG_POP		0x02
+#define DICT_FLAG_NONE_DEFAULT	0x04
+#define DICT_FLAG_RETURN_BOOL	0x08 /* Incompatible with DICT_FLAG_POP */
+#define DICT_FLAG_RETURN_PAIR	0x10
+
     static PyObject *
-DictionaryItem(DictionaryObject *self, PyObject *keyObject)
+_DictionaryItem(DictionaryObject *self, PyObject *args, int flags)
 {
+    PyObject	*keyObject;
+    PyObject	*defObject = ((flags & DICT_FLAG_NONE_DEFAULT)? Py_None : NULL);
+    PyObject	*r;
     char_u	*key;
     dictitem_T	*di;
+    dict_T	*dict = self->dict;
+    hashitem_T	*hi;
+
     DICTKEY_DECL
 
+    if (flags & DICT_FLAG_HAS_DEFAULT)
+    {
+	if (!PyArg_ParseTuple(args, "O|O", &keyObject, &defObject))
+	    return NULL;
+    }
+    else
+	keyObject = args;
+
+    if (flags & DICT_FLAG_RETURN_BOOL)
+	defObject = Py_False;
+
     DICTKEY_GET(NULL, 0)
 
-    di = dict_find(self->dict, key, -1);
+    hi = hash_find(&dict->dv_hashtab, key);
 
     DICTKEY_UNREF
 
-    if (di == NULL)
+    if (HASHITEM_EMPTY(hi))
     {
-	PyErr_SetObject(PyExc_KeyError, keyObject);
+	if (defObject)
+	{
+	    Py_INCREF(defObject);
+	    return defObject;
+	}
+	else
+	{
+	    PyErr_SetObject(PyExc_KeyError, keyObject);
+	    return NULL;
+	}
+    }
+    else if (flags & DICT_FLAG_RETURN_BOOL)
+    {
+	Py_INCREF(Py_True);
+	return Py_True;
+    }
+
+    di = dict_lookup(hi);
+
+    if (!(r = ConvertToPyObject(&di->di_tv)))
+	return NULL;
+
+    if (flags & DICT_FLAG_POP)
+    {
+	if (dict->dv_lock)
+	{
+	    PyErr_SetVim(_("dict is locked"));
+	    Py_DECREF(r);
+	    return NULL;
+	}
+
+	hash_remove(&dict->dv_hashtab, hi);
+	dictitem_free(di);
+    }
+
+    if (flags & DICT_FLAG_RETURN_PAIR)
+    {
+	PyObject	*tmp = r;
+
+	if (!(r = Py_BuildValue("(" Py_bytes_fmt "O)", hi->hi_key, tmp)))
+	{
+	    Py_DECREF(tmp);
+	    return NULL;
+	}
+    }
+
+    return r;
+}
+
+    static PyObject *
+DictionaryItem(DictionaryObject *self, PyObject *keyObject)
+{
+    return _DictionaryItem(self, keyObject, 0);
+}
+
+    static int
+DictionaryContains(DictionaryObject *self, PyObject *keyObject)
+{
+    PyObject	*rObj = _DictionaryItem(self, keyObject, DICT_FLAG_RETURN_BOOL);
+    int		r;
+
+    r = (rObj == Py_True);
+
+    Py_DECREF(Py_True);
+
+    return r;
+}
+
+typedef struct
+{
+    hashitem_T	*ht_array;
+    long_u	ht_used;
+    hashtab_T	*ht;
+    hashitem_T	*hi;
+    int		todo;
+} dictiterinfo_T;
+
+    static PyObject *
+DictionaryIterNext(dictiterinfo_T **dii)
+{
+    PyObject	*r;
+
+    if (!(*dii)->todo)
+	return NULL;
+
+    if ((*dii)->ht->ht_array != (*dii)->ht_array ||
+	    (*dii)->ht->ht_used != (*dii)->ht_used)
+    {
+	PyErr_SetString(PyExc_RuntimeError,
+		_("hashtab changed during iteration"));
 	return NULL;
     }
 
-    return ConvertToPyObject(&di->di_tv);
+    while (((*dii)->todo) && HASHITEM_EMPTY((*dii)->hi))
+	++((*dii)->hi);
+
+    --((*dii)->todo);
+
+    if (!(r = PyBytes_FromString((char *) (*dii)->hi->hi_key)))
+	return NULL;
+
+    return r;
+}
+
+    static PyObject *
+DictionaryIter(DictionaryObject *self)
+{
+    dictiterinfo_T	*dii;
+    hashtab_T		*ht;
+
+    if (!(dii = PyMem_New(dictiterinfo_T, 1)))
+    {
+	PyErr_NoMemory();
+	return NULL;
+    }
+
+    ht = &self->dict->dv_hashtab;
+    dii->ht_array = ht->ht_array;
+    dii->ht_used = ht->ht_used;
+    dii->ht = ht;
+    dii->hi = dii->ht_array;
+    dii->todo = dii->ht_used;
+
+    return IterNew(dii,
+	    (destructorfun) PyMem_Free, (nextfun) DictionaryIterNext,
+	    NULL, NULL);
 }
 
     static PyInt
@@ -1016,18 +1209,19 @@
 
     if (di == NULL)
     {
-	di = dictitem_alloc(key);
-	if (di == NULL)
+	if (!(di = dictitem_alloc(key)))
 	{
 	    PyErr_NoMemory();
 	    return -1;
 	}
 	di->di_tv.v_lock = 0;
+	di->di_tv.v_type = VAR_UNKNOWN;
 
 	if (dict_add(dict, di) == FAIL)
 	{
 	    DICTKEY_UNREF
 	    vim_free(di);
+	    dictitem_free(di);
 	    PyErr_SetVim(_("failed to add key to dictionary"));
 	    return -1;
 	}
@@ -1042,21 +1236,34 @@
     return 0;
 }
 
+typedef PyObject *(*hi_to_py)(hashitem_T *);
+
     static PyObject *
-DictionaryListKeys(DictionaryObject *self)
+DictionaryListObjects(DictionaryObject *self, hi_to_py hiconvert)
 {
     dict_T	*dict = self->dict;
     long_u	todo = dict->dv_hashtab.ht_used;
     Py_ssize_t	i = 0;
     PyObject	*r;
     hashitem_T	*hi;
+    PyObject	*newObj;
 
     r = PyList_New(todo);
     for (hi = dict->dv_hashtab.ht_array; todo > 0; ++hi)
     {
 	if (!HASHITEM_EMPTY(hi))
 	{
-	    PyList_SetItem(r, i, PyBytes_FromString((char *)(hi->hi_key)));
+	    if (!(newObj = hiconvert(hi)))
+	    {
+		Py_DECREF(r);
+		return NULL;
+	    }
+	    if (PyList_SetItem(r, i, newObj))
+	    {
+		Py_DECREF(r);
+		Py_DECREF(newObj);
+		return NULL;
+	    }
 	    --todo;
 	    ++i;
 	}
@@ -1064,6 +1271,235 @@
     return r;
 }
 
+    static PyObject *
+dict_key(hashitem_T *hi)
+{
+    return PyBytes_FromString((char *)(hi->hi_key));
+}
+
+    static PyObject *
+DictionaryListKeys(DictionaryObject *self)
+{
+    return DictionaryListObjects(self, dict_key);
+}
+
+    static PyObject *
+dict_val(hashitem_T *hi)
+{
+    dictitem_T	*di;
+
+    di = dict_lookup(hi);
+    return ConvertToPyObject(&di->di_tv);
+}
+
+    static PyObject *
+DictionaryListValues(DictionaryObject *self)
+{
+    return DictionaryListObjects(self, dict_val);
+}
+
+    static PyObject *
+dict_item(hashitem_T *hi)
+{
+    PyObject	*keyObject;
+    PyObject	*valObject;
+    PyObject	*r;
+
+    if (!(keyObject = dict_key(hi)))
+	return NULL;
+
+    if (!(valObject = dict_val(hi)))
+    {
+	Py_DECREF(keyObject);
+	return NULL;
+    }
+
+    r = Py_BuildValue("(OO)", keyObject, valObject);
+
+    Py_DECREF(keyObject);
+    Py_DECREF(valObject);
+
+    return r;
+}
+
+    static PyObject *
+DictionaryListItems(DictionaryObject *self)
+{
+    return DictionaryListObjects(self, dict_item);
+}
+
+    static PyObject *
+DictionaryUpdate(DictionaryObject *self, PyObject *args, PyObject *kwargs)
+{
+    dict_T	*dict = self->dict;
+
+    if (dict->dv_lock)
+    {
+	PyErr_SetVim(_("dict is locked"));
+	return NULL;
+    }
+
+    if (kwargs)
+    {
+	typval_T	tv;
+
+	if (ConvertFromPyMapping(kwargs, &tv) == -1)
+	    return NULL;
+
+	VimTryStart();
+	dict_extend(self->dict, tv.vval.v_dict, (char_u *) "force");
+	clear_tv(&tv);
+	if (VimTryEnd())
+	    return NULL;
+    }
+    else
+    {
+	PyObject	*object;
+
+	if (!PyArg_Parse(args, "(O)", &object))
+	    return NULL;
+
+	if (PyObject_HasAttrString(object, "keys"))
+	    return DictionaryUpdate(self, NULL, object);
+	else
+	{
+	    PyObject	*iterator;
+	    PyObject	*item;
+
+	    if (!(iterator = PyObject_GetIter(object)))
+		return NULL;
+
+	    while ((item = PyIter_Next(iterator)))
+	    {
+		PyObject	*fast;
+		PyObject	*keyObject;
+		PyObject	*valObject;
+		PyObject	*todecref;
+		char_u		*key;
+		dictitem_T	*di;
+
+		if (!(fast = PySequence_Fast(item, "")))
+		{
+		    Py_DECREF(iterator);
+		    Py_DECREF(item);
+		    return NULL;
+		}
+
+		Py_DECREF(item);
+
+		if (PySequence_Fast_GET_SIZE(fast) != 2)
+		{
+		    Py_DECREF(iterator);
+		    Py_DECREF(fast);
+		    PyErr_SetString(PyExc_ValueError,
+			    _("expected sequence element of size 2"));
+		    return NULL;
+		}
+
+		keyObject = PySequence_Fast_GET_ITEM(fast, 0);
+
+		if (!(key = StringToChars(keyObject, &todecref)))
+		{
+		    Py_DECREF(iterator);
+		    Py_DECREF(fast);
+		    return NULL;
+		}
+
+		di = dictitem_alloc(key);
+
+		Py_XDECREF(todecref);
+
+		if (di == NULL)
+		{
+		    Py_DECREF(fast);
+		    Py_DECREF(iterator);
+		    PyErr_NoMemory();
+		    return NULL;
+		}
+		di->di_tv.v_lock = 0;
+		di->di_tv.v_type = VAR_UNKNOWN;
+
+		valObject = PySequence_Fast_GET_ITEM(fast, 1);
+
+		if (ConvertFromPyObject(valObject, &di->di_tv) == -1)
+		{
+		    Py_DECREF(iterator);
+		    Py_DECREF(fast);
+		    dictitem_free(di);
+		    return NULL;
+		}
+
+		Py_DECREF(fast);
+
+		if (dict_add(dict, di) == FAIL)
+		{
+		    Py_DECREF(iterator);
+		    dictitem_free(di);
+		    PyErr_SetVim(_("failed to add key to dictionary"));
+		    return NULL;
+		}
+	    }
+
+	    Py_DECREF(iterator);
+
+	    /* Iterator may have finished due to an exception */
+	    if (PyErr_Occurred())
+		return NULL;
+	}
+    }
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+
+    static PyObject *
+DictionaryGet(DictionaryObject *self, PyObject *args)
+{
+    return _DictionaryItem(self, args,
+			    DICT_FLAG_HAS_DEFAULT|DICT_FLAG_NONE_DEFAULT);
+}
+
+    static PyObject *
+DictionaryPop(DictionaryObject *self, PyObject *args)
+{
+    return _DictionaryItem(self, args, DICT_FLAG_HAS_DEFAULT|DICT_FLAG_POP);
+}
+
+    static PyObject *
+DictionaryPopItem(DictionaryObject *self, PyObject *args)
+{
+    PyObject	*keyObject;
+
+    if (!PyArg_ParseTuple(args, "O", &keyObject))
+	return NULL;
+
+    return _DictionaryItem(self, keyObject,
+			    DICT_FLAG_POP|DICT_FLAG_RETURN_PAIR);
+}
+
+    static PyObject *
+DictionaryHasKey(DictionaryObject *self, PyObject *args)
+{
+    PyObject	*keyObject;
+
+    if (!PyArg_ParseTuple(args, "O", &keyObject))
+	return NULL;
+
+    return _DictionaryItem(self, keyObject, DICT_FLAG_RETURN_BOOL);
+}
+
+static PySequenceMethods DictionaryAsSeq = {
+    0,					/* sq_length */
+    0,					/* sq_concat */
+    0,					/* sq_repeat */
+    0,					/* sq_item */
+    0,					/* sq_slice */
+    0,					/* sq_ass_item */
+    0,					/* sq_ass_slice */
+    (objobjproc) DictionaryContains,	/* sq_contains */
+    0,					/* sq_inplace_concat */
+    0,					/* sq_inplace_repeat */
+};
+
 static PyMappingMethods DictionaryAsMapping = {
     (lenfunc)       DictionaryLength,
     (binaryfunc)    DictionaryItem,
@@ -1072,6 +1508,13 @@
 
 static struct PyMethodDef DictionaryMethods[] = {
     {"keys",	(PyCFunction)DictionaryListKeys,	METH_NOARGS,	""},
+    {"values",	(PyCFunction)DictionaryListValues,	METH_NOARGS,	""},
+    {"items",	(PyCFunction)DictionaryListItems,	METH_NOARGS,	""},
+    {"update",	(PyCFunction)DictionaryUpdate,		METH_VARARGS|METH_KEYWORDS, ""},
+    {"get",	(PyCFunction)DictionaryGet,		METH_VARARGS,	""},
+    {"pop",	(PyCFunction)DictionaryPop,		METH_VARARGS,	""},
+    {"popitem",	(PyCFunction)DictionaryPopItem,		METH_VARARGS,	""},
+    {"has_key",	(PyCFunction)DictionaryHasKey,		METH_VARARGS,	""},
     {"__dir__",	(PyCFunction)DictionaryDir,		METH_NOARGS,	""},
     { NULL,	NULL,					0,		NULL}
 };
@@ -1541,14 +1984,7 @@
 	selfdictObject = PyDict_GetItemString(kwargs, "self");
 	if (selfdictObject != NULL)
 	{
-	    if (!PyMapping_Check(selfdictObject))
-	    {
-		PyErr_SetString(PyExc_TypeError,
-				   _("'self' argument must be a dictionary"));
-		clear_tv(&args);
-		return NULL;
-	    }
-	    if (ConvertFromPyObject(selfdictObject, &selfdicttv) == -1)
+	    if (ConvertFromPyMapping(selfdictObject, &selfdicttv) == -1)
 	    {
 		clear_tv(&args);
 		return NULL;
@@ -1994,7 +2430,7 @@
     else if (strcmp(name, "number") == 0)
 	return PyLong_FromLong((long) get_tab_number(self->tab));
     else if (strcmp(name, "vars") == 0)
-	return DictionaryNew(self->tab->tp_vars);
+	return NEW_DICTIONARY(self->tab->tp_vars);
     else if (strcmp(name, "window") == 0)
     {
 	/* For current tab window.c does not bother to set or update tp_curwin
@@ -2225,7 +2661,7 @@
 	return PyLong_FromLong((long)(W_WINCOL(self->win)));
 #endif
     else if (strcmp(name, "vars") == 0)
-	return DictionaryNew(self->win->w_vars);
+	return NEW_DICTIONARY(self->win->w_vars);
     else if (strcmp(name, "options") == 0)
 	return OptionsNew(SREQ_WIN, self->win, (checkfun) CheckWindow,
 			(PyObject *) self);
@@ -3402,7 +3838,7 @@
     else if (strcmp(name, "number") == 0)
 	return Py_BuildValue(Py_ssize_t_fmt, self->buf->b_fnum);
     else if (strcmp(name, "vars") == 0)
-	return DictionaryNew(self->buf->b_vars);
+	return NEW_DICTIONARY(self->buf->b_vars);
     else if (strcmp(name, "options") == 0)
 	return OptionsNew(SREQ_BUF, self->buf, (checkfun) CheckBuffer,
 			(PyObject *) self);
@@ -4307,6 +4743,36 @@
 }
 
     static int
+ConvertFromPyMapping(PyObject *obj, typval_T *tv)
+{
+    PyObject	*lookup_dict;
+    int		r;
+
+    if (!(lookup_dict = PyDict_New()))
+	return -1;
+
+    if (PyType_IsSubtype(obj->ob_type, &DictionaryType))
+    {
+	tv->v_type = VAR_DICT;
+	tv->vval.v_dict = (((DictionaryObject *)(obj))->dict);
+	++tv->vval.v_dict->dv_refcount;
+	r = 0;
+    }
+    else if (PyDict_Check(obj))
+	r = convert_dl(obj, tv, pydict_to_tv, lookup_dict);
+    else if (PyMapping_Check(obj))
+	r = convert_dl(obj, tv, pymap_to_tv, lookup_dict);
+    else
+    {
+	PyErr_SetString(PyExc_TypeError,
+		_("unable to convert object to vim dictionary"));
+	r = -1;
+    }
+    Py_DECREF(lookup_dict);
+    return r;
+}
+
+    static int
 ConvertFromPyObject(PyObject *obj, typval_T *tv)
 {
     PyObject	*lookup_dict;
@@ -4322,7 +4788,7 @@
     static int
 _ConvertFromPyObject(PyObject *obj, typval_T *tv, PyObject *lookup_dict)
 {
-    if (obj->ob_type == &DictionaryType)
+    if (PyType_IsSubtype(obj->ob_type, &DictionaryType))
     {
 	tv->v_type = VAR_DICT;
 	tv->vval.v_dict = (((DictionaryObject *)(obj))->dict);
@@ -4437,7 +4903,7 @@
 	case VAR_LIST:
 	    return ListNew(tv->vval.v_list);
 	case VAR_DICT:
-	    return DictionaryNew(tv->vval.v_dict);
+	    return NEW_DICTIONARY(tv->vval.v_dict);
 	case VAR_FUNC:
 	    return FunctionNew(tv->vval.v_string == NULL
 					  ? (char_u *)"" : tv->vval.v_string);
@@ -4608,10 +5074,14 @@
     DictionaryType.tp_name = "vim.dictionary";
     DictionaryType.tp_basicsize = sizeof(DictionaryObject);
     DictionaryType.tp_dealloc = (destructor)DictionaryDestructor;
+    DictionaryType.tp_as_sequence = &DictionaryAsSeq;
     DictionaryType.tp_as_mapping = &DictionaryAsMapping;
-    DictionaryType.tp_flags = Py_TPFLAGS_DEFAULT;
+    DictionaryType.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE;
     DictionaryType.tp_doc = "dictionary pushing modifications to vim structure";
     DictionaryType.tp_methods = DictionaryMethods;
+    DictionaryType.tp_iter = (getiterfunc)DictionaryIter;
+    DictionaryType.tp_new = (newfunc)DictionaryConstructor;
+    DictionaryType.tp_alloc = (allocfunc)PyType_GenericAlloc;
 #if PY_MAJOR_VERSION >= 3
     DictionaryType.tp_getattro = (getattrofunc)DictionaryGetattro;
     DictionaryType.tp_setattro = (setattrofunc)DictionarySetattro;
@@ -4786,8 +5256,8 @@
 	return -1;
     ADD_OBJECT(m, "error", VimError);
 
-    ADD_CHECKED_OBJECT(m, "vars",  DictionaryNew(&globvardict));
-    ADD_CHECKED_OBJECT(m, "vvars", DictionaryNew(&vimvardict));
+    ADD_CHECKED_OBJECT(m, "vars",  NEW_DICTIONARY(&globvardict));
+    ADD_CHECKED_OBJECT(m, "vvars", NEW_DICTIONARY(&vimvardict));
     ADD_CHECKED_OBJECT(m, "options",
 	    OptionsNew(SREQ_GLOBAL, NULL, dummy_check, NULL));
     return 0;
diff --git a/src/if_python.c b/src/if_python.c
index 16874e8..188e1a2 100644
--- a/src/if_python.c
+++ b/src/if_python.c
@@ -103,6 +103,7 @@
 # define PyIntIntObjArgProc intintobjargproc
 # define Py_ssize_t_fmt "i"
 #endif
+#define Py_bytes_fmt "s"
 
 /* Parser flags */
 #define single_input	256
@@ -187,6 +188,7 @@
 # define PySequence_Check dll_PySequence_Check
 # define PySequence_Size dll_PySequence_Size
 # define PySequence_GetItem dll_PySequence_GetItem
+# define PySequence_Fast dll_PySequence_Fast
 # define PyTuple_Size dll_PyTuple_Size
 # define PyTuple_GetItem dll_PyTuple_GetItem
 # define PyTuple_Type (*dll_PyTuple_Type)
@@ -207,6 +209,7 @@
 # define PyRun_SimpleString dll_PyRun_SimpleString
 # define PyRun_String dll_PyRun_String
 # define PyObject_GetAttrString dll_PyObject_GetAttrString
+# define PyObject_HasAttrString dll_PyObject_HasAttrString
 # define PyObject_SetAttrString dll_PyObject_SetAttrString
 # define PyObject_CallFunctionObjArgs dll_PyObject_CallFunctionObjArgs
 # define PyString_AsString dll_PyString_AsString
@@ -227,6 +230,7 @@
 # define PySys_SetArgv dll_PySys_SetArgv
 # define PyType_Type (*dll_PyType_Type)
 # define PyType_Ready (*dll_PyType_Ready)
+# define PyType_GenericAlloc dll_PyType_GenericAlloc
 # define Py_BuildValue dll_Py_BuildValue
 # define Py_FindMethod dll_Py_FindMethod
 # define Py_InitModule4 dll_Py_InitModule4
@@ -318,6 +322,7 @@
 static int (*dll_PySequence_Check)(PyObject *);
 static PyInt(*dll_PySequence_Size)(PyObject *);
 static PyObject*(*dll_PySequence_GetItem)(PyObject *, PyInt);
+static PyObject*(*dll_PySequence_Fast)(PyObject *, const char *);
 static PyInt(*dll_PyTuple_Size)(PyObject *);
 static PyObject*(*dll_PyTuple_GetItem)(PyObject *, PyInt);
 static PyTypeObject* dll_PyTuple_Type;
@@ -336,6 +341,7 @@
 static int(*dll_PyRun_SimpleString)(char *);
 static PyObject *(*dll_PyRun_String)(char *, int, PyObject *, PyObject *);
 static PyObject* (*dll_PyObject_GetAttrString)(PyObject *, const char *);
+static int (*dll_PyObject_HasAttrString)(PyObject *, const char *);
 static PyObject* (*dll_PyObject_SetAttrString)(PyObject *, const char *, PyObject *);
 static PyObject* (*dll_PyObject_CallFunctionObjArgs)(PyObject *, ...);
 static char*(*dll_PyString_AsString)(PyObject *);
@@ -354,6 +360,7 @@
 static int(*dll_PySys_SetArgv)(int, char **);
 static PyTypeObject* dll_PyType_Type;
 static int (*dll_PyType_Ready)(PyTypeObject *type);
+static PyObject* (*dll_PyType_GenericAlloc)(PyTypeObject *type, PyInt nitems);
 static PyObject*(*dll_Py_BuildValue)(char *, ...);
 static PyObject*(*dll_Py_FindMethod)(struct PyMethodDef[], PyObject *, char *);
 static PyObject*(*dll_Py_InitModule4)(char *, struct PyMethodDef *, char *, PyObject *, int);
@@ -475,9 +482,10 @@
     {"PyList_SetItem", (PYTHON_PROC*)&dll_PyList_SetItem},
     {"PyList_Size", (PYTHON_PROC*)&dll_PyList_Size},
     {"PyList_Type", (PYTHON_PROC*)&dll_PyList_Type},
-    {"PySequence_GetItem", (PYTHON_PROC*)&dll_PySequence_GetItem},
     {"PySequence_Size", (PYTHON_PROC*)&dll_PySequence_Size},
     {"PySequence_Check", (PYTHON_PROC*)&dll_PySequence_Check},
+    {"PySequence_GetItem", (PYTHON_PROC*)&dll_PySequence_GetItem},
+    {"PySequence_Fast", (PYTHON_PROC*)&dll_PySequence_Fast},
     {"PyTuple_GetItem", (PYTHON_PROC*)&dll_PyTuple_GetItem},
     {"PyTuple_Size", (PYTHON_PROC*)&dll_PyTuple_Size},
     {"PyTuple_Type", (PYTHON_PROC*)&dll_PyTuple_Type},
@@ -496,6 +504,7 @@
     {"PyRun_SimpleString", (PYTHON_PROC*)&dll_PyRun_SimpleString},
     {"PyRun_String", (PYTHON_PROC*)&dll_PyRun_String},
     {"PyObject_GetAttrString", (PYTHON_PROC*)&dll_PyObject_GetAttrString},
+    {"PyObject_HasAttrString", (PYTHON_PROC*)&dll_PyObject_HasAttrString},
     {"PyObject_SetAttrString", (PYTHON_PROC*)&dll_PyObject_SetAttrString},
     {"PyObject_CallFunctionObjArgs", (PYTHON_PROC*)&dll_PyObject_CallFunctionObjArgs},
     {"PyString_AsString", (PYTHON_PROC*)&dll_PyString_AsString},
@@ -514,6 +523,7 @@
     {"PySys_SetArgv", (PYTHON_PROC*)&dll_PySys_SetArgv},
     {"PyType_Type", (PYTHON_PROC*)&dll_PyType_Type},
     {"PyType_Ready", (PYTHON_PROC*)&dll_PyType_Ready},
+    {"PyType_GenericAlloc", (PYTHON_PROC*)&dll_PyType_GenericAlloc},
     {"Py_FindMethod", (PYTHON_PROC*)&dll_Py_FindMethod},
     {"Py_SetPythonHome", (PYTHON_PROC*)&dll_Py_SetPythonHome},
     {"Py_Initialize", (PYTHON_PROC*)&dll_Py_Initialize},
@@ -1116,10 +1126,8 @@
     (PyIntObjArgProc)	BufferAssItem,	    /* sq_ass_item,  x[i]=v   */
     (PyIntIntObjArgProc) BufferAssSlice,    /* sq_ass_slice, x[i:j]=v */
     (objobjproc)	0,
-#if PY_MAJOR_VERSION >= 2
     (binaryfunc)	0,
     0,
-#endif
 };
 
 /* Buffer object - Implementation
diff --git a/src/if_python3.c b/src/if_python3.c
index 5d87fa3..4f6809d 100644
--- a/src/if_python3.c
+++ b/src/if_python3.c
@@ -96,6 +96,7 @@
 #define PyInt_FromLong(i) PyLong_FromLong(i)
 #define PyInt_AsLong(obj) PyLong_AsLong(obj)
 #define Py_ssize_t_fmt "n"
+#define Py_bytes_fmt "y"
 
 #if defined(DYNAMIC_PYTHON3) || defined(PROTO)
 
@@ -149,6 +150,7 @@
 # define PySequence_Check py3_PySequence_Check
 # define PySequence_Size py3_PySequence_Size
 # define PySequence_GetItem py3_PySequence_GetItem
+# define PySequence_Fast py3_PySequence_Fast
 # define PyTuple_Size py3_PyTuple_Size
 # define PyTuple_GetItem py3_PyTuple_GetItem
 # define PySlice_GetIndicesEx py3_PySlice_GetIndicesEx
@@ -168,6 +170,7 @@
 #undef PyRun_String
 # define PyRun_String py3_PyRun_String
 # define PyObject_GetAttrString py3_PyObject_GetAttrString
+# define PyObject_HasAttrString py3_PyObject_HasAttrString
 # define PyObject_SetAttrString py3_PyObject_SetAttrString
 # define PyObject_CallFunctionObjArgs py3_PyObject_CallFunctionObjArgs
 # define PyEval_GetLocals py3_PyEval_GetLocals
@@ -269,6 +272,7 @@
 static int (*py3_PySequence_Check)(PyObject *);
 static Py_ssize_t (*py3_PySequence_Size)(PyObject *);
 static PyObject* (*py3_PySequence_GetItem)(PyObject *, Py_ssize_t);
+static PyObject* (*py3_PySequence_Fast)(PyObject *, const char *);
 static Py_ssize_t (*py3_PyTuple_Size)(PyObject *);
 static PyObject* (*py3_PyTuple_GetItem)(PyObject *, Py_ssize_t);
 static int (*py3_PyMapping_Check)(PyObject *);
@@ -282,6 +286,7 @@
 static int (*py3_PyRun_SimpleString)(char *);
 static PyObject* (*py3_PyRun_String)(char *, int, PyObject *, PyObject *);
 static PyObject* (*py3_PyObject_GetAttrString)(PyObject *, const char *);
+static int (*py3_PyObject_HasAttrString)(PyObject *, const char *);
 static PyObject* (*py3_PyObject_SetAttrString)(PyObject *, const char *, PyObject *);
 static PyObject* (*py3_PyObject_CallFunctionObjArgs)(PyObject *, ...);
 static PyObject* (*py3_PyEval_GetGlobals)();
@@ -425,6 +430,7 @@
     {"PySequence_Check", (PYTHON_PROC*)&py3_PySequence_Check},
     {"PySequence_Size", (PYTHON_PROC*)&py3_PySequence_Size},
     {"PySequence_GetItem", (PYTHON_PROC*)&py3_PySequence_GetItem},
+    {"PySequence_Fast", (PYTHON_PROC*)&py3_PySequence_Fast},
     {"PyTuple_Size", (PYTHON_PROC*)&py3_PyTuple_Size},
     {"PyTuple_GetItem", (PYTHON_PROC*)&py3_PyTuple_GetItem},
     {"PySlice_GetIndicesEx", (PYTHON_PROC*)&py3_PySlice_GetIndicesEx},
@@ -435,6 +441,7 @@
     {"PyRun_SimpleString", (PYTHON_PROC*)&py3_PyRun_SimpleString},
     {"PyRun_String", (PYTHON_PROC*)&py3_PyRun_String},
     {"PyObject_GetAttrString", (PYTHON_PROC*)&py3_PyObject_GetAttrString},
+    {"PyObject_HasAttrString", (PYTHON_PROC*)&py3_PyObject_HasAttrString},
     {"PyObject_SetAttrString", (PYTHON_PROC*)&py3_PyObject_SetAttrString},
     {"PyObject_CallFunctionObjArgs", (PYTHON_PROC*)&py3_PyObject_CallFunctionObjArgs},
     {"PyEval_GetGlobals", (PYTHON_PROC*)&py3_PyEval_GetGlobals},
diff --git a/src/proto/eval.pro b/src/proto/eval.pro
index 7c3f7a1..8cb0dd6 100644
--- a/src/proto/eval.pro
+++ b/src/proto/eval.pro
@@ -75,6 +75,7 @@
 dictitem_T *dict_find __ARGS((dict_T *d, char_u *key, int len));
 char_u *get_dict_string __ARGS((dict_T *d, char_u *key, int save));
 long get_dict_number __ARGS((dict_T *d, char_u *key));
+void dict_extend __ARGS((dict_T *d1, dict_T *d2, char_u *action));
 char_u *get_function_name __ARGS((expand_T *xp, int idx));
 char_u *get_expr_name __ARGS((expand_T *xp, int idx));
 char_u *get_expanded_name __ARGS((char_u *name, int check));
diff --git a/src/testdir/test86.in b/src/testdir/test86.in
index cf97686..28adb70 100644
--- a/src/testdir/test86.in
+++ b/src/testdir/test86.in
@@ -31,16 +31,22 @@
 :"
 :" Extending Dictionary directly with different types
 :let d = {}
-:py d=vim.bindeval('d')
-:py d['1']='asd'
-:py d['b']=[1, 2, f]
-:py d['-1']={'a': 1}
-:let dkeys = []
-:py dk=vim.bindeval('dkeys')
-:py dkeys=d.keys()
-:py dkeys.sort()
-:py dk.extend(dkeys)
-:$put =string(dkeys)
+py << EOF
+d=vim.bindeval('d')
+d['1']='asd'
+d.update(b=[1, 2, f])
+d.update((('-1', {'a': 1}),))
+d.update({'0': -1})
+dk = d.keys()
+dv = d.values()
+di = d.items()
+dk.sort(key=repr)
+dv.sort(key=repr)
+di.sort(key=repr)
+EOF
+:$put =pyeval('repr(dk)')
+:$put =substitute(pyeval('repr(dv)'),'0x\x\+','','g')
+:$put =substitute(pyeval('repr(di)'),'0x\x\+','','g')
 :for [key, val] in sort(items(d))
 :  $put =string(key) . ' : ' . string(val)
 :  unlet key val
@@ -60,7 +66,20 @@
 :$put =string(l)
 :"
 :py del d['-1']
+:$put =string(pyeval('d.get(''b'', 1)'))
+:$put =string(pyeval('d.pop(''b'')'))
+:$put =string(pyeval('d.get(''b'', 1)'))
+:$put =string(pyeval('d.pop(''1'', 2)'))
+:$put =string(pyeval('d.pop(''1'', 2)'))
+:$put =pyeval('repr(d.has_key(''0''))')
+:$put =pyeval('repr(d.has_key(''1''))')
+:$put =pyeval('repr(''0'' in d)')
+:$put =pyeval('repr(''1'' in d)')
+:$put =pyeval('repr(list(iter(d)))')
 :$put =string(d)
+:$put =pyeval('repr(d.popitem(''0''))')
+:$put =pyeval('repr(d.get(''0''))')
+:$put =pyeval('repr(list(iter(d)))')
 :"
 :" removing items out of range: silently skip items that don't exist
 :let l = [0, 1, 2, 3]
@@ -198,6 +217,9 @@
 em('d[""]=1')
 em('d["a\\0b"]=1')
 em('d[u"a\\0b"]=1')
+
+em('d.pop("abc")')
+em('d.popitem("abc")')
 EOF
 :$put =messages
 :unlet messages
@@ -709,6 +731,10 @@
 del o
 EOF
 :"
+:" Test vim.*.__new__
+:$put =string(pyeval('vim.Dictionary({})'))
+:$put =string(pyeval('vim.Dictionary(a=1)'))
+:$put =string(pyeval('vim.Dictionary(((''a'', 1),))'))
 :"
 :" Test stdout/stderr
 :redir => messages
@@ -718,6 +744,16 @@
 :py sys.stderr.writelines(iter('abc'))
 :redir END
 :$put =string(substitute(messages, '\d\+', '', 'g'))
+:" Test subclassing
+py << EOF
+class DupDict(vim.Dictionary):
+    def __setitem__(self, key, value):
+        super(DupDict, self).__setitem__(key, value)
+        super(DupDict, self).__setitem__('dup_' + key, value)
+dd = DupDict()
+dd['a'] = 'b'
+EOF
+:$put =string(sort(keys(pyeval('dd'))))
 :"
 :" Test exceptions
 :fun Exe(e)
diff --git a/src/testdir/test86.ok b/src/testdir/test86.ok
index fb94c3a..200af04 100644
--- a/src/testdir/test86.ok
+++ b/src/testdir/test86.ok
@@ -4,13 +4,29 @@
 Vim(put):E684:
 [0, 'as''d', [1, 2, function('strlen'), {'a': 1}]]
 [0, function('strlen'), [1, 2, function('strlen'), {'a': 1}]]
-['-1', '1', 'b']
+['-1', '0', '1', 'b']
+['asd', -1L, <vim.dictionary object at >, <vim.list object at >]
+[('-1', <vim.dictionary object at >), ('0', -1L), ('1', 'asd'), ('b', <vim.list object at >)]
 '-1' : {'a': 1}
+'0' : -1
 '1' : 'asd'
 'b' : [1, 2, function('strlen')]
 [0, function('strlen')]
 [3]
-{'1': 'asd', 'b': [1, 2, function('strlen')]}
+[1, 2, function('strlen')]
+[1, 2, function('strlen')]
+1
+'asd'
+2
+True
+False
+True
+False
+['0']
+{'0': -1}
+('', -1L)
+None
+[]
 [0, 1, 2, 3]
 [0, 1, 2, 3]
 [0, 1, 3]
@@ -44,6 +60,8 @@
 ValueError
 TypeError
 TypeError
+KeyError
+KeyError
 d : locked:0;scope:0
 dl : locked:1;scope:0
 v: : locked:2;scope:1
@@ -387,10 +405,13 @@
 window:__dir__,__members__,buffer,col,cursor,height,number,options,row,tabpage,valid,vars
 tabpage:__dir__,__members__,number,valid,vars,window,windows
 range:__dir__,__members__,append,end,start
-dictionary:__dir__,__members__,keys,locked,scope
+dictionary:__dir__,__members__,get,has_key,items,keys,locked,pop,popitem,scope,update,values
 list:__dir__,__members__,extend,locked
 function:__call__,__dir__,__members__,softspace
 output:__dir__,__members__,flush,softspace,write,writelines
+{}
+{'a': 1}
+{'a': 1}
 '
 abcdef
 line  :
@@ -398,6 +419,7 @@
 abc
 line  :
 abc'
+['a', 'dup_a']
 (<class 'vim.error'>, error('abc',))
 (<class 'vim.error'>, error('def',))
 (<class 'vim.error'>, error('ghi',))
diff --git a/src/testdir/test87.in b/src/testdir/test87.in
index b1763ed..20f616f 100644
--- a/src/testdir/test87.in
+++ b/src/testdir/test87.in
@@ -26,16 +26,22 @@
 :"
 :" Extending Dictionary directly with different types
 :let d = {}
-:py3 d=vim.bindeval('d')
-:py3 d['1']='asd'
-:py3 d['b']=[1, 2, f]
-:py3 d['-1']={'a': 1}
-:let dkeys = []
-:py3 dk=vim.bindeval('dkeys')
-:py3 dkeys=d.keys()
-:py3 dkeys.sort()
-:py3 dk+=dkeys
-:$put =string(dkeys)
+py3 << EOF
+d=vim.bindeval('d')
+d['1']='asd'
+d.update(b=[1, 2, f])
+d.update((('-1', {'a': 1}),))
+d.update({'0': -1})
+dk = d.keys()
+dv = d.values()
+di = d.items()
+dk.sort(key=repr)
+dv.sort(key=repr)
+di.sort(key=repr)
+EOF
+:$put =py3eval('repr(dk)')
+:$put =substitute(py3eval('repr(dv)'),'0x\x\+','','g')
+:$put =substitute(py3eval('repr(di)'),'0x\x\+','','g')
 :for [key, val] in sort(items(d))
 :  $put =string(key) . ' : ' . string(val)
 :  unlet key val
@@ -55,7 +61,20 @@
 :$put =string(l)
 :"
 :py3 del d['-1']
+:$put =string(py3eval('d.get(''b'', 1)'))
+:$put =string(py3eval('d.pop(''b'')'))
+:$put =string(py3eval('d.get(''b'', 1)'))
+:$put =string(py3eval('d.pop(''1'', 2)'))
+:$put =string(py3eval('d.pop(''1'', 2)'))
+:$put =py3eval('repr(d.has_key(''0''))')
+:$put =py3eval('repr(d.has_key(''1''))')
+:$put =py3eval('repr(''0'' in d)')
+:$put =py3eval('repr(''1'' in d)')
+:$put =py3eval('repr(list(iter(d)))')
 :$put =string(d)
+:$put =py3eval('repr(d.popitem(''0''))')
+:$put =py3eval('repr(d.get(''0''))')
+:$put =py3eval('repr(list(iter(d)))')
 :"
 :" removing items out of range: silently skip items that don't exist
 :let l = [0, 1, 2, 3]
@@ -181,35 +200,21 @@
 :py3 <<EOF
 d=vim.bindeval('{}')
 m=vim.bindeval('messages')
-try:
-    d['abc']
-except Exception as e:
-    m.extend([e.__class__.__name__])
+def em(expr, g=globals(), l=locals()):
+    try:
+        exec(expr, g, l)
+    except Exception as e:
+        m.extend([e.__class__.__name__])
 
-try:
-    d['abc']="\0"
-except Exception as e:
-    m.extend([e.__class__.__name__])
+em('d["abc"]')
+em('d["abc"]="\\0"')
+em('d["abc"]=vim')
+em('d[""]=1')
+em('d["a\\0b"]=1')
+em('d[b"a\\0b"]=1')
 
-try:
-    d['abc']=vim
-except Exception as e:
-    m.extend([e.__class__.__name__])
-
-try:
-    d['']=1
-except Exception as e:
-    m.extend([e.__class__.__name__])
-
-try:
-    d['a\0b']=1
-except Exception as e:
-    m.extend([e.__class__.__name__])
-
-try:
-    d[b'a\0b']=1
-except Exception as e:
-    m.extend([e.__class__.__name__])
+em('d.pop("abc")')
+em('d.popitem("abc")')
 EOF
 :$put =messages
 :unlet messages
@@ -687,6 +692,10 @@
 del o
 EOF
 :"
+:" Test vim.Dictionary.__new__
+:$put =string(py3eval('vim.Dictionary({})'))
+:$put =string(py3eval('vim.Dictionary(a=1)'))
+:$put =string(py3eval('vim.Dictionary(((''a'', 1),))'))
 :"
 :" Test stdout/stderr
 :redir => messages
@@ -696,6 +705,16 @@
 :py sys.stderr.writelines(iter('abc'))
 :redir END
 :$put =string(substitute(messages, '\d\+', '', 'g'))
+:" Test subclassing
+py3 << EOF
+class DupDict(vim.Dictionary):
+    def __setitem__(self, key, value):
+        super(DupDict, self).__setitem__(key, value)
+        super(DupDict, self).__setitem__('dup_' + key, value)
+dd = DupDict()
+dd['a'] = 'b'
+EOF
+:$put =string(sort(keys(py3eval('dd'))))
 :"
 :" Test exceptions
 :fun Exe(e)
diff --git a/src/testdir/test87.ok b/src/testdir/test87.ok
index 8ae7a8c..b92d65c 100644
--- a/src/testdir/test87.ok
+++ b/src/testdir/test87.ok
@@ -4,13 +4,29 @@
 Vim(put):E684:
 [0, 'as''d', [1, 2, function('strlen'), {'a': 1}]]
 [0, function('strlen'), [1, 2, function('strlen'), {'a': 1}]]
-['-1', '1', 'b']
+[b'-1', b'0', b'1', b'b']
+[-1, <vim.dictionary object at >, <vim.list object at >, b'asd']
+[(b'-1', <vim.dictionary object at >), (b'0', -1), (b'1', b'asd'), (b'b', <vim.list object at >)]
 '-1' : {'a': 1}
+'0' : -1
 '1' : 'asd'
 'b' : [1, 2, function('strlen')]
 [0, function('strlen')]
 [3]
-{'1': 'asd', 'b': [1, 2, function('strlen')]}
+[1, 2, function('strlen')]
+[1, 2, function('strlen')]
+1
+'asd'
+2
+True
+False
+True
+False
+[b'0']
+{'0': -1}
+(b'', -1)
+None
+[]
 [0, 1, 2, 3]
 [0, 1, 2, 3]
 [0, 1, 3]
@@ -44,6 +60,8 @@
 ValueError
 TypeError
 TypeError
+KeyError
+KeyError
 d : locked:0;scope:0
 dl : locked:1;scope:0
 v: : locked:2;scope:1
@@ -376,10 +394,13 @@
 window:__dir__,buffer,col,cursor,height,number,options,row,tabpage,valid,vars
 tabpage:__dir__,number,valid,vars,window,windows
 range:__dir__,append,end,start
-dictionary:__dir__,keys,locked,scope
+dictionary:__dir__,get,has_key,items,keys,locked,pop,popitem,scope,update,values
 list:__dir__,extend,locked
 function:__call__,__dir__,softspace
 output:__dir__,flush,softspace,write,writelines
+{}
+{'a': 1}
+{'a': 1}
 '
 abcdef
 line  :
@@ -387,6 +408,7 @@
 abc
 line  :
 abc'
+['a', 'dup_a']
 (<class 'vim.error'>, error('abc',))
 (<class 'vim.error'>, error('def',))
 (<class 'vim.error'>, error('ghi',))
diff --git a/src/version.c b/src/version.c
index ec01993..0a20a72 100644
--- a/src/version.c
+++ b/src/version.c
@@ -729,6 +729,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1061,
+/**/
     1060,
 /**/
     1059,