src/sage/tensor/modules/format_utilities.py: Conditionalize an import with 'if TYPE_CHECKING:'

Author: Matthias Koeppe

src/sage/tensor/modules/format_utilities.py

@@ -22,9 +22,13 @@
 #******************************************************************************
 from __future__ import annotations
 
-from sage.misc.latex import LatexExpr
+from typing import TYPE_CHECKING
+
 from sage.structure.sage_object import SageObject
 
+if TYPE_CHECKING:
+    from sage.misc.latex import LatexExpr
+
 
 def is_atomic(expr, sep=['+', '-']):
     r"""