diff -ruN mysqlclient-1.3.13.orig/_mysql.c mysqlclient-1.3.13/_mysql.c
--- mysqlclient-1.3.13.orig/_mysql.c	2017-12-21 14:09:51.000000000 +0300
+++ mysqlclient-1.3.13/_mysql.c	2018-06-28 01:04:11.433787292 +0300
@@ -225,7 +225,7 @@
 	PyObject *kwargs) {
 	static char *kwlist[] = {"args", "groups", NULL};
 	char **cmd_args_c=NULL, **groups_c=NULL, *s;
-	int cmd_argc=0, i, groupc;
+	Py_ssize_t cmd_argc=0, i, groupc;
 	PyObject *cmd_args=NULL, *groups=NULL, *ret=NULL, *item;
 
 	if (_mysql_server_init_done) {
@@ -249,6 +249,10 @@
 			PyErr_SetString(PyExc_TypeError,
 					"args could not be sized");
 			goto finish;
+                } else if (cmd_argc > INT_MAX) {
+                        PyErr_SetString(PyExc_ValueError,
+                                        "more than INT_MAX args, this is unsupported");
+ 			goto finish;
 		}
 		cmd_args_c = (char **) PyMem_Malloc(cmd_argc*sizeof(char *));
 		for (i=0; i< cmd_argc; i++) {
@@ -415,7 +419,7 @@
 		else if (PySequence_Check(fun)) {
 			long flags = fields[i].flags;
 			PyObject *fun2=NULL;
-			int j, n2=PySequence_Size(fun);
+			Py_ssize_t j, n2=PySequence_Size(fun);
 			if (fields[i].charsetnr != 63) { /* maaagic */
 				flags &= ~BINARY_FLAG;
 			}
@@ -1181,7 +1185,7 @@
 	PyObject *args)
 {
 	PyObject *o=NULL, *d=NULL, *r=NULL, *item, *quoted; 
-	int i, n;
+	Py_ssize_t i, n;
 	if (!PyArg_ParseTuple(args, "OO:escape_sequence", &o, &d))
 		goto error;
 	if (!PyMapping_Check(d)) {