polish

mrocklin · Jan 2, 2024 · 9798fdd · 9798fdd
1 parent 14f7d99
commit 9798fdd
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/dask/base.py b/dask/base.py
@@ -225,8 +225,10 @@ def is_dask_collection(x) -> bool:
         # Read: https://github.com/dask/dask/pull/10676
         return True
 
+    # xarray, pint, and possibly other wrappers always define a __dask_graph__ method,
+    # but it may return None if they wrap around a non-dask object.
     # In all known dask collections other than dask-expr,
-    # calling __dask_graph__ is cheap
+    # calling __dask_graph__ is cheap.
     return x.__dask_graph__() is not None