src/sage/tensor/modules: Add missing 'from __future__ import annotations'

Author: Matthias Koeppe

src/sage/tensor/modules/finite_rank_free_module.py

@@ -529,7 +529,7 @@ class :class:`~sage.modules.free_module.FreeModule_generic`
 #  the License, or (at your option) any later version.
 #                  https://www.gnu.org/licenses/
 #******************************************************************************
-from __future__ import absolute_import
+from __future__ import annotations
 
 from typing import Generator, Optional
 

src/sage/tensor/modules/format_utilities.py

@@ -20,6 +20,7 @@
 #  the License, or (at your option) any later version.
 #                  http://www.gnu.org/licenses/
 #******************************************************************************
+from __future__ import annotations
 
 from sage.misc.latex import LatexExpr
 from sage.structure.sage_object import SageObject