Merge ssize_t branch.
diff --git a/Modules/bz2module.c b/Modules/bz2module.c
index 9f30f8a..a0f66ee 100644
--- a/Modules/bz2module.c
+++ b/Modules/bz2module.c
@@ -908,7 +908,7 @@
 			PyObject *v = PyList_GET_ITEM(list, i);
 			if (!PyString_Check(v)) {
 			    	const char *buffer;
-			    	int len;
+			    	Py_ssize_t len;
 				if (PyObject_AsCharBuffer(v, &buffer, &len)) {
 					PyErr_SetString(PyExc_TypeError,
 							"writelines() "