It is better to check local cache first

Author: sergey-miryanov

Modules/_ctypes/callproc.c

@@ -1993,11 +1993,6 @@ create_pointer_type(PyObject *module, PyObject *cls)
 
     assert(module);
     ctypes_state *st = get_module_state(module);
-    if (PyDict_GetItemRef(st->_ctypes_ptrtype_cache, cls, &result) != 0) {
-        // found or error
-        return result;
-    }
-
     StgInfo* info = NULL;
     if (PyStgInfo_FromAny(st, cls, &info) < 0) {
         return NULL;
@@ -2007,6 +2002,11 @@ create_pointer_type(PyObject *module, PyObject *cls)
         return Py_XNewRef(info->pointer_type);
     }
 
+    if (PyDict_GetItemRef(st->_ctypes_ptrtype_cache, cls, &result) != 0) {
+        // found or error
+        return result;
+    }
+
     // not found
     if (PyUnicode_CheckExact(cls)) {
         PyObject *name = PyUnicode_FromFormat("LP_%U", cls);