Fix typing

Author: druzsan

docs/examples/plot_stress.py

@@ -7,7 +7,7 @@
 # pylint: disable=pointless-statement
 
 from pathlib import Path
-from typing import List
+from typing import List, Union
 import numpy as np
 from lasso.dyna import ArrayType
 from mesh2vec.mesh2vec_cae import Mesh2VecCae
@@ -23,7 +23,7 @@
 )
 
 
-def mean_over_components_all_layers(v: List | np.ndarray) -> np.ndarray:
+def mean_over_components_all_layers(v: Union[List, np.ndarray]) -> np.ndarray:
     """get mean over all components and all layers"""
     return np.mean(v, axis=-1)
 

mesh2vec/mesh_features.py

@@ -1,7 +1,7 @@
 """calculation of mesh based features"""
 
 import os
-from typing import Tuple, List, Any, Optional
+from typing import Tuple, List, Any, Optional, Union
 
 import numpy as np
 import numpy.typing
@@ -245,7 +245,7 @@ def from_ansa_json(elements: List[Any], nodes: List[Any]) -> "CaeShellMesh":
         return CaeShellMesh(point_coordinates, pnt_ids, elem_ids, elem_node_idxs)
 
     @staticmethod
-    def from_keyfile(keyfile: str | os.PathLike, partid: str = "") -> "CaeShellMesh":
+    def from_keyfile(keyfile: Union[str, os.PathLike], partid: str = "") -> "CaeShellMesh":
         """
         create CaeShellMesh from keyfile