Correct location for syntax error in try-except (GH-25939)

diff --git a/Python/compile.c b/Python/compile.c
index 4fc8b38..d6bcca1 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -3165,9 +3165,9 @@ compiler_try_except(struct compiler *c, stmt_ty s)
     for (i = 0; i < n; i++) {
         excepthandler_ty handler = (excepthandler_ty)asdl_seq_GET(
             s->v.Try.handlers, i);
+        SET_LOC(c, handler);
         if (!handler->v.ExceptHandler.type && i < n-1)
             return compiler_error(c, "default 'except:' must be last");
-        SET_LOC(c, handler);
         except = compiler_new_block(c);
         if (except == NULL)
             return 0;