Remove unnecessary _is_node optimization and clean up type hints.

src/uberjob/_plan.py

@@ -40,11 +40,6 @@
 }
 
 
-def _is_node(value) -> bool:
-    """Efficiently determines whether the given value is a :class:`~uberjob.graph.Node`."""
-    return type(value) in (Call, Literal)
-
-
 class Plan:
     """Represents a symbolic call graph."""
 
@@ -90,7 +85,7 @@ def lit(self, value) -> Literal:
         :param value: The literal value.
         :return: The symbolic literal value.
         """
-        if _is_node(value):
+        if isinstance(value, Node):
             raise TypeError(f"The value is already a {Node.__name__}.")
         literal = Literal(value, scope=self._scope)
         self.graph.add_node(literal)
@@ -118,12 +113,12 @@ def recurse(root):
             if gather_fn is not None:
                 items = root.items() if root_type is dict else root
                 children = [recurse(item) for item in items]
-                if any(_is_node(child) for child in children):
+                if any(isinstance(child, Node) for child in children):
                     return self._call(stack_frame, gather_fn, *children)
             return root
 
         value = recurse(value)
-        return value if _is_node(value) else self.lit(value)
+        return value if isinstance(value, Node) else self.lit(value)
 
     def gather(self, value) -> Node:
         """

src/uberjob/_registry.py

@@ -14,7 +14,7 @@
 # limitations under the License.
 #
 import copy
-import typing
+from collections.abc import Iterable, KeysView
 
 from uberjob._builtins import source
 from uberjob._plan import Node, Plan
@@ -99,7 +99,7 @@ def get(self, node: Node) -> ValueStore | None:
         v = self.mapping.get(node)
         return v.value_store if v else None
 
-    def keys(self) -> typing.KeysView[Node]:
+    def keys(self) -> KeysView[Node]:
         """
         Get all registered :class:`~uberjob.graph.Node` instances.
 
@@ -123,7 +123,7 @@ def items(self) -> list[tuple[Node, ValueStore]]:
         """
         return [(k, v.value_store) for k, v in self.mapping.items()]
 
-    def __iter__(self) -> typing.Iterable[Node]:
+    def __iter__(self) -> Iterable[Node]:
         """
         Get all registered :class:`~uberjob.graph.Node` instances.
 

src/uberjob/_rendering.py

@@ -13,8 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-import typing
-from collections import OrderedDict
+from collections.abc import Callable
 
 from uberjob._plan import Plan
 from uberjob._registry import Registry
@@ -35,7 +34,7 @@
 GRAY = (0.4, 0.4, 0.4)
 
 
-def default_style(registry: Registry = None):
+def default_style(registry: Registry | None = None):
     import nxv
 
     if registry is None:
@@ -132,8 +131,8 @@ class Scope:
 def render(
     plan: Plan | Graph | tuple[Plan, Node | None],
     *,
-    registry: Registry = None,
-    predicate: typing.Callable[[Node, dict], bool] = None,
+    registry: Registry | None = None,
+    predicate: None | Callable[[Node, dict], bool] = None,
     level: int | None = None,
     format: str | None = None
 ) -> bytes | None:
@@ -165,7 +164,7 @@ def render(
         )
 
     if level is not None:
-        scope_groups = OrderedDict()
+        scope_groups = {}
         for u in graph.nodes():
             scope = u.scope
             if scope:

src/uberjob/_testing/test_mounted_file_store.py

@@ -14,7 +14,7 @@
 # limitations under the License.
 #
 import datetime as dt
-import typing
+from collections.abc import Callable
 
 from uberjob._testing.test_store import TestStore
 from uberjob._util import repr_helper
@@ -23,7 +23,7 @@
 
 
 class TestMountedFileStore(MountedStore):
-    def __init__(self, create_file_store: typing.Callable[[str], FileStore]):
+    def __init__(self, create_file_store: Callable[[str], FileStore]):
         super().__init__(create_file_store)
         self.remote_store = TestStore()
 

src/uberjob/_util/validation.py

@@ -14,7 +14,7 @@
 # limitations under the License.
 #
 import inspect
-import typing
+from collections.abc import Callable
 from functools import lru_cache
 
 from uberjob._util import fully_qualified_name
@@ -57,14 +57,14 @@ def assert_is_instance(
 
 
 @lru_cache(4096)
-def try_get_signature(fn: typing.Callable):
+def try_get_signature(fn: Callable):
     try:
         return inspect.signature(fn)
     except ValueError:
         return None
 
 
-def assert_can_bind(fn: typing.Callable, *args, **kwargs):
+def assert_can_bind(fn: Callable, *args, **kwargs):
     sig = try_get_signature(fn)
     if sig is None:
         return

src/uberjob/stores/_mounted_store.py

@@ -15,8 +15,8 @@
 #
 import os
 import tempfile
-import typing
 from abc import ABC, abstractmethod
+from collections.abc import Callable
 from contextlib import contextmanager
 
 from uberjob._util import repr_helper
@@ -38,7 +38,7 @@ class MountedStore(ValueStore, ABC):
 
     __slots__ = ("create_store",)
 
-    def __init__(self, create_store: typing.Callable[[str], ValueStore]):
+    def __init__(self, create_store: Callable[[str], ValueStore]):
         self.create_store = create_store
         """Creates an instance of the underlying :class:`~uberjob.ValueStore` for the given path."""