fix: Use 3.8 compatible typing.Callable over collections.abc

altair/utils/_vegafusion_data.py

@@ -1,6 +1,5 @@
 import uuid
 from weakref import WeakValueDictionary
-
 from typing import (
     Any,
     Literal,
@@ -13,8 +12,8 @@
     Final,
     TYPE_CHECKING,
     overload,
+    Callable,
 )
-from collections.abc import Callable
 
 from altair.utils._importers import import_vegafusion
 from altair.utils.core import DataFrameLike

altair/utils/plugin_registry.py

@@ -1,7 +1,6 @@
 from functools import partial
-from typing import Any, Dict, List, Optional, Generic, TypeVar, Union, cast
+from typing import Any, Dict, List, Optional, Generic, TypeVar, Union, cast, Callable
 from types import TracebackType
-from collections.abc import Callable
 from importlib.metadata import entry_points
 
 

altair/vegalite/data.py

@@ -13,8 +13,7 @@
 from ..utils.data import DataTransformerRegistry as _DataTransformerRegistry
 from ..utils.data import DataType, ToValuesReturnType
 from ..utils.plugin_registry import PluginEnabler
-from typing import Optional, Literal, Union, overload
-from collections.abc import Callable
+from typing import Optional, Literal, Union, overload, Callable
 
 
 @overload