Issue #27301: Fixed incorrect return code for error in compile.c.

Python/compile.c

@@ -1889,7 +1889,7 @@ compiler_import_as(struct compiler *c, identifier name, identifier asname)
             attr = PyString_FromStringAndSize(src,
                                 dot ? dot - src : strlen(src));
             if (!attr)
-                return -1;
+                return 0;
             ADDOP_O(c, LOAD_ATTR, attr, names);
             Py_DECREF(attr);
             src = dot + 1;