Fix runtime type issues

Author: CoolCat467

anytree/iterators/abstractiter.py

@@ -13,10 +13,10 @@
     from ..node.nodemixin import NodeMixin
 
 
-NodeT = TypeVar("NodeT", bound=NodeMixin[Any] | LightNodeMixin[Any], covariant=True)
+NodeT = TypeVar("NodeT", bound="NodeMixin[Any] | LightNodeMixin[Any]", covariant=True)
 
 
-class AbstractIter(six.Iterator, Generic[NodeT]):
+class AbstractIter(Generic[NodeT], six.Iterator):
     # pylint: disable=R0205
     """
     Iterate over tree starting at `node`.

anytree/node/anynode.py

@@ -11,7 +11,7 @@
     from collections.abc import Iterable
 
 
-class AnyNode(NodeMixin[AnyNode]):
+class AnyNode(NodeMixin["AnyNode"]):
     """
     A generic tree node with any `kwargs`.
 

anytree/node/node.py

@@ -11,7 +11,7 @@
     from collections.abc import Iterable
 
 
-class Node(NodeMixin[Node]):
+class Node(NodeMixin["Node"]):
     """
     A simple tree node with a `name` and any `kwargs`.
 

anytree/node/symlinknode.py

@@ -14,7 +14,7 @@
     from .nodemixin import NodeMixin
 
 
-NodeT = TypeVar("NodeT", bound=NodeMixin[Any] | LightNodeMixin[Any], covariant=True)
+NodeT = TypeVar("NodeT", bound="NodeMixin[Any] | LightNodeMixin[Any]", covariant=True)
 
 
 class SymlinkNode(SymlinkNodeMixin, Generic[NodeT]):

anytree/node/symlinknodemixin.py

@@ -5,7 +5,7 @@
 from .nodemixin import NodeMixin
 
 
-class SymlinkNodeMixin(NodeMixin[SymlinkNodeMixin]):
+class SymlinkNodeMixin(NodeMixin["SymlinkNodeMixin"]):
     """
     The :any:`SymlinkNodeMixin` class extends any Python class to a symbolic link to a tree node.