add updates libs

server/libs/cattrs/strategies/_subclasses.py

@@ -9,21 +9,25 @@ from typing import Any, Callable, TypeVar, Union
 from ..converters import BaseConverter
 from ..gen import AttributeOverride, make_dict_structure_fn, make_dict_unstructure_fn
 from ..gen._consts import already_generating
+from ..subclasses import subclasses
 
 
 def _make_subclasses_tree(cl: type) -> list[type]:
     # get class origin for accessing subclasses (see #648 for more info)
     cls_origin = typing.get_origin(cl) or cl
-    return [cl] + [
-        sscl
-        for scl in cls_origin.__subclasses__()
-        for sscl in _make_subclasses_tree(scl)
-    ]
+
+    # Use a dict to deduplicate and keep insertion order.
+    seen = {cl: None}
+    for scl in subclasses(cls_origin):
+        for sscl in _make_subclasses_tree(scl):
+            seen[sscl] = None
+    return list(seen)
 
 
 def _has_subclasses(cl: type, given_subclasses: tuple[type, ...]) -> bool:
     """Whether the given class has subclasses from `given_subclasses`."""
-    actual = set(cl.__subclasses__())
+    cls_origin = typing.get_origin(cl) or cl
+    actual = set(subclasses(cls_origin))
     given = set(given_subclasses)
     return bool(actual & given)
 
@@ -68,6 +72,9 @@ def include_subclasses(
     .. versionchanged:: 24.1.0
        When overrides are not provided, hooks for individual classes are retrieved from
        the converter instead of generated with no overrides, using converter defaults.
+    .. versionchanged:: 25.2.0
+       Slotted dataclasses work on Python 3.14 via :func:`cattrs.subclasses.subclasses`,
+       which filters out duplicate classes caused by slotting.
     """
     # Due to https://github.com/python-attrs/attrs/issues/1047
     collect()
@@ -231,7 +238,13 @@ def _include_subclasses_with_union_strategy(
             return cls is _cl
 
         converter.register_unstructure_hook_func(cls_is_cl, unstruct_hook)
-        subclasses = tuple([c for c in union_classes if issubclass(c, cl)])
+        subclasses = tuple(
+            [
+                c
+                for c in union_classes
+                if issubclass(typing.get_origin(c) or c, typing.get_origin(cl) or cl)
+            ]
+        )
         if len(subclasses) > 1:
             u = Union[subclasses]  # type: ignore
             union_strategy(u, converter)