Fix.

Author: tobiasraabe

src/_pytask/_inspect.py

@@ -45,7 +45,7 @@ def get_annotations(
     versions without :mod:`annotationlib` - we fall back to the stdlib implementation,
     so behaviour on 3.10-3.13 remains unchanged.
     """
-    if sys.version_info < (3, 14):
+    if sys.version_info < (3, 14) or not eval_str or not hasattr(obj, "__globals__"):
         return _get_annotations_from_inspect(
             obj, globals=globals, locals=locals, eval_str=eval_str
         )

src/_pytask/task_utils.py

@@ -310,11 +310,15 @@ def parse_keyword_arguments_from_signature_defaults(
 
 def _snapshot_annotation_locals(func: Callable[..., Any]) -> dict[str, Any] | None:
     """Capture the values of free variables at decoration time for annotations."""
-    if func.__closure__ is None:
+    while isinstance(func, functools.partial):
+        func = func.func
+
+    closure = getattr(func, "__closure__", None)
+    if not closure:
         return None
 
     snapshot = {}
-    for name, cell in zip(func.__code__.co_freevars, func.__closure__, strict=False):
+    for name, cell in zip(func.__code__.co_freevars, closure, strict=False):
         with suppress(ValueError):
             snapshot[name] = cell.cell_contents