bugfix datawrapper

Author: matthiasdiener

meshmode/array_context.py

@@ -610,7 +610,7 @@ def materialize(ary: pt.Array) -> pt.Array:
         data_wrapper_cache = {}
 
         def cached_data_wrapper_if_present(ary):
-            if isinstance(ary, pt.DataWrapper):
+            if isinstance(ary, pt.array.DataWrapper):
                 cache_key = (ary.data.data.int_ptr, ary.data.offset,
                              ary.shape, ary.data.strides)
                 try: