Fix UP007 (Typealias Unions)

pytensor/graph/fg.py

@@ -26,7 +26,7 @@ from pytensor.misc.ordered_set import OrderedSet
 if TYPE_CHECKING:
     from pytensor.graph.op import Op
 
-ApplyOrOutput = Union[Apply, Literal["output"]]
+ApplyOrOutput = Apply | Literal["output"]
 ClientType = tuple[ApplyOrOutput, int]
 
 

pytensor/graph/replace.py

 import warnings
 from collections.abc import Iterable, Mapping, Sequence
 from functools import partial, singledispatch
-from typing import Union, cast, overload
+from typing import cast, overload
 
 from pytensor.graph.basic import (
     Apply,
@@ -14,7 +14,7 @@ from pytensor.graph.fg import FunctionGraph
 from pytensor.graph.op import Op
 
 
-ReplaceTypes = Union[Iterable[tuple[Variable, Variable]], dict[Variable, Variable]]
+ReplaceTypes = Iterable[tuple[Variable, Variable]] | dict[Variable, Variable]
 
 
 def _format_replace(replace: ReplaceTypes | None = None) -> dict[Variable, Variable]:

pytensor/graph/rewriting/basic.py

@@ -15,7 +15,7 @@ from collections.abc import Callable, Iterable, Sequence
 from collections.abc import Iterable as IterableType
 from functools import _compose_mro, partial, reduce  # type: ignore
 from itertools import chain
-from typing import TYPE_CHECKING, Literal, Union, cast
+from typing import TYPE_CHECKING, Literal, cast
 
 import pytensor
 from pytensor.configdefaults import config
@@ -44,11 +44,11 @@ if TYPE_CHECKING:
 _logger = logging.getLogger("pytensor.graph.rewriting.basic")
 
 RemoveKeyType = Literal["remove"]
-TransformOutputType = Union[
-    bool,
-    Sequence[Variable],
-    dict[Variable | Literal["remove"], Variable | Sequence[Variable]],
-]
+TransformOutputType = (
+    bool
+    | Sequence[Variable]
+    | dict[Variable | Literal["remove"], Variable | Sequence[Variable]]
+)
 FailureCallbackType = Callable[
     [
         Exception,

pytensor/graph/rewriting/db.py

@@ -12,7 +12,7 @@ from pytensor.misc.ordered_set import OrderedSet
 from pytensor.utils import DefaultOrderedDict
 
 
-RewritesType = Union[pytensor_rewriting.GraphRewriter, pytensor_rewriting.NodeRewriter]
+RewritesType = pytensor_rewriting.GraphRewriter | pytensor_rewriting.NodeRewriter
 
 
 class RewriteDatabase:

pytensor/tensor/shape.py

 import warnings
 from numbers import Number
 from textwrap import dedent
-from typing import Union, cast
+from typing import cast
 
 import numpy as np
 
@@ -24,7 +24,7 @@ from pytensor.tensor.type_other import NoneConst
 from pytensor.tensor.variable import TensorConstant, TensorVariable
 
 
-ShapeValueType = Union[None, np.integer, int, Variable]
+ShapeValueType = None | np.integer | int | Variable
 
 
 def register_shape_c_code(type, code, version=()):

pytensor/tensor/type.py

 import logging
 import warnings
 from collections.abc import Iterable
-from typing import TYPE_CHECKING, Literal, Optional, Union
+from typing import TYPE_CHECKING, Literal, Optional
 
 import numpy as np
 
@@ -772,7 +772,7 @@ pytensor.compile.register_deep_copy_op_c_code(
 )
 
 # Valid static type entries
-ST = Union[int, None]
+ST = int | None
 
 
 def tensor(