Fix the sqlite failure -- it was the usual, PyInt_Check -> PyInt_CheckExact.
Clarify some OverflowError messages from the various PyLong_AsXXX methods.
diff --git a/Modules/_sqlite/statement.c b/Modules/_sqlite/statement.c
index 4e45636..7763d10 100644
--- a/Modules/_sqlite/statement.c
+++ b/Modules/_sqlite/statement.c
@@ -100,7 +100,7 @@
 
     if (parameter == Py_None) {
         rc = sqlite3_bind_null(self->st, pos);
-    } else if (PyInt_Check(parameter)) {
+    } else if (PyInt_CheckExact(parameter)) {
         longval = PyInt_AsLong(parameter);
         rc = sqlite3_bind_int64(self->st, pos, (sqlite_int64)longval);
 #ifdef HAVE_LONG_LONG