Fixup

Can't have `__wrapped__` be a property, since some tools check for the
presence of `__wrapped__` on all objects, and a property would define
that attribute on the class.

Author: jcrist

src/prefect/tasks/core/function.py

@@ -26,8 +26,7 @@ def __get__(self, obj, cls):
 
 class FunctionTask(prefect.Task):
     __doc__ = _DocProxy(
-        """
-    A convenience Task for functionally creating Task instances with
+        """A convenience Task for functionally creating Task instances with
     arbitrary callable `run` methods.
 
     Args:
@@ -63,7 +62,7 @@ def __init__(self, fn: Callable, name: str = None, **kwargs: Any):
 
         super().__init__(name=name, **kwargs)
 
-    @property
-    def __wrapped__(self):
-        """Propogates information about the wrapped function"""
-        return self.run
+    def __getattr__(self, k):
+        if k == "__wrapped__":
+            return self.run
+        raise AttributeError(f"'FunctionTask' object has no attribute {k}")

tests/tasks/test_core.py

@@ -69,6 +69,7 @@ def my_fn():
 
         t = FunctionTask(fn=my_fn)
         assert t.__wrapped__ == my_fn
+        assert not hasattr(FunctionTask, "__wrapped__")
 
 
 class TestCollections: