Disallow keyword arguments for type constructors that don't use them

(fixes #1119418).

6 files changed, 54 insertions, 12 deletions

diff --git a/Modules/_randommodule.c b/Modules/_randommodule.c
index 1189036..8fe2b2b 100644
--- a/Modules/_randommodule.c
+++ b/Modules/_randommodule.c
@@ -481,6 +481,9 @@ random_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	RandomObject *self;
 	PyObject *tmp;
 
+	if (!_PyArg_NoKeywords("Random()", kwds))
+		return NULL;
+
 	self = (RandomObject *)type->tp_alloc(type, 0);
 	if (self == NULL)
 		return NULL;
diff --git a/Modules/arraymodule.c b/Modules/arraymodule.c
index 7ed3b73..0e78e65 100644
--- a/Modules/arraymodule.c
+++ b/Modules/arraymodule.c
@@ -1774,18 +1774,9 @@ array_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	char c;
 	PyObject *initial = NULL, *it = NULL;
 	struct arraydescr *descr;
-
-	if (kwds != NULL) {
-		int i = PyObject_Length(kwds);
-		if (i < 0)
-			return NULL;
-		else if (i > 0) {
-			PyErr_SetString(PyExc_TypeError,
-			    "array.array constructor takes "
-			    "no keyword arguments");
-			return NULL;
-		}
-	}
+	
+	if (!_PyArg_NoKeywords("array.array()", kwds))
+		return NULL;
 
 	if (!PyArg_ParseTuple(args, "c|O:array", &c, &initial))
 		return NULL;
diff --git a/Modules/collectionsmodule.c b/Modules/collectionsmodule.c
index ed10999..5af568d 100644
--- a/Modules/collectionsmodule.c
+++ b/Modules/collectionsmodule.c
@@ -95,6 +95,9 @@ deque_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	dequeobject *deque;
 	block *b;
 
+	if (!_PyArg_NoKeywords("deque()", kwds))
+		return NULL;
+
 	/* create dequeobject structure */
 	deque = (dequeobject *)type->tp_alloc(type, 0);
 	if (deque == NULL)
diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c
index bf148ac..3d5e8a2 100644
--- a/Modules/itertoolsmodule.c
+++ b/Modules/itertoolsmodule.c
@@ -618,6 +618,9 @@ cycle_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	PyObject *saved;
 	cycleobject *lz;
 
+	if (!_PyArg_NoKeywords("cycle()", kwds))
+		return NULL;
+
 	if (!PyArg_UnpackTuple(args, "cycle", 1, 1, &iterable))
 		return NULL;
 
@@ -765,6 +768,9 @@ dropwhile_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	PyObject *it;
 	dropwhileobject *lz;
 
+	if (!_PyArg_NoKeywords("dropwhile()", kwds))
+		return NULL;
+
 	if (!PyArg_UnpackTuple(args, "dropwhile", 2, 2, &func, &seq))
 		return NULL;
 
@@ -906,6 +912,9 @@ takewhile_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	PyObject *it;
 	takewhileobject *lz;
 
+	if (!_PyArg_NoKeywords("takewhile()", kwds))
+		return NULL;
+
 	if (!PyArg_UnpackTuple(args, "takewhile", 2, 2, &func, &seq))
 		return NULL;
 
@@ -1048,6 +1057,9 @@ islice_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	int numargs;
 	isliceobject *lz;
 
+	if (!_PyArg_NoKeywords("islice()", kwds))
+		return NULL;
+
 	numargs = PyTuple_Size(args);
 	if (!PyArg_ParseTuple(args, "OO|Ol:islice", &seq, &a1, &a2, &step))
 		return NULL;
@@ -1234,6 +1246,9 @@ starmap_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	PyObject *it;
 	starmapobject *lz;
 
+	if (!_PyArg_NoKeywords("starmap()", kwds))
+		return NULL;
+
 	if (!PyArg_UnpackTuple(args, "starmap", 2, 2, &func, &seq))
 		return NULL;
 
@@ -1363,6 +1378,9 @@ imap_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	imapobject *lz;
 	int numargs, i;
 
+	if (!_PyArg_NoKeywords("imap()", kwds))
+		return NULL;
+
 	numargs = PyTuple_Size(args);
 	if (numargs < 2) {
 		PyErr_SetString(PyExc_TypeError,
@@ -1542,6 +1560,9 @@ chain_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	int i;
 	PyObject *ittuple;
 
+	if (!_PyArg_NoKeywords("chain()", kwds))
+		return NULL;
+
 	/* obtain iterators */
 	assert(PyTuple_Check(args));
 	ittuple = PyTuple_New(tuplesize);
@@ -1682,6 +1703,9 @@ ifilter_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	PyObject *it;
 	ifilterobject *lz;
 
+	if (!_PyArg_NoKeywords("ifilter()", kwds))
+		return NULL;
+
 	if (!PyArg_UnpackTuple(args, "ifilter", 2, 2, &func, &seq))
 		return NULL;
 
@@ -1823,6 +1847,9 @@ ifilterfalse_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	PyObject *it;
 	ifilterfalseobject *lz;
 
+	if (!_PyArg_NoKeywords("ifilterfalse()", kwds))
+		return NULL;
+
 	if (!PyArg_UnpackTuple(args, "ifilterfalse", 2, 2, &func, &seq))
 		return NULL;
 
@@ -1962,6 +1989,9 @@ count_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	countobject *lz;
 	long cnt = 0;
 
+	if (!_PyArg_NoKeywords("count()", kwds))
+		return NULL;
+
 	if (!PyArg_ParseTuple(args, "|l:count", &cnt))
 		return NULL;
 
@@ -2058,6 +2088,9 @@ izip_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	PyObject *result;
 	int tuplesize = PySequence_Length(args);
 
+	if (!_PyArg_NoKeywords("izip()", kwds))
+		return NULL;
+
 	/* args must be a tuple */
 	assert(PyTuple_Check(args));
 
@@ -2238,6 +2271,9 @@ repeat_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	PyObject *element;
 	long cnt = -1;
 
+	if (!_PyArg_NoKeywords("repeat()", kwds))
+		return NULL;
+
 	if (!PyArg_ParseTuple(args, "O|l:repeat", &element, &cnt))
 		return NULL;
 
diff --git a/Modules/operator.c b/Modules/operator.c
index 468440e..00135d9b 100644
--- a/Modules/operator.c
+++ b/Modules/operator.c
@@ -267,6 +267,9 @@ itemgetter_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	itemgetterobject *ig;
 	PyObject *item;
 
+	if (!_PyArg_NoKeywords("itemgetter()", kdws))
+		return NULL;
+
 	if (!PyArg_UnpackTuple(args, "itemgetter", 1, 1, &item))
 		return NULL;
 
@@ -374,6 +377,9 @@ attrgetter_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	attrgetterobject *ag;
 	PyObject *attr;
 
+	if (!_PyArg_NoKeywords("attrgetter()", kwds))
+		return NULL;
+
 	if (!PyArg_UnpackTuple(args, "attrgetter", 1, 1, &attr))
 		return NULL;
 
diff --git a/Modules/zipimport.c b/Modules/zipimport.c
index 9630dea..e445300 100644
--- a/Modules/zipimport.c
+++ b/Modules/zipimport.c
@@ -65,6 +65,9 @@ zipimporter_init(ZipImporter *self, PyObject *args, PyObject *kwds)
 	char *path, *p, *prefix, buf[MAXPATHLEN+2];
 	int len;
 
+	if (!_PyArg_NoKeywords("zipimporter()", kwds))
+		return -1;
+
 	if (!PyArg_ParseTuple(args, "s:zipimporter",
 			      &path))
 		return -1;