Implement hash function in ListDtype

rapidsai · Jan 6, 2021 · bdc5c21 · bdc5c21
1 parent 15ad905
commit bdc5c21
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Showing 2 changed files with 3 additions and 7 deletions.
diff --git a/python/cudf/cudf/core/column/lists.py b/python/cudf/cudf/core/column/lists.py
@@ -102,13 +102,6 @@ def to_arrow(self):
             pa_type, len(self), buffers, children=[elements]
         )
 
-    def to_pandas(self, index=None, nullable=False, **kwargs):
-        pd_series = self.to_arrow().to_pandas(**kwargs)
-
-        if index is not None:
-            pd_series.index = index
-        return pd_series
-
     def set_base_data(self, value):
         if value is not None:
             raise RuntimeError(

diff --git a/python/cudf/cudf/core/dtypes.py b/python/cudf/cudf/core/dtypes.py
@@ -165,6 +165,9 @@ def __repr__(self):
         else:
             return f"ListDtype({self.element_type})"
 
+    def __hash__(self):
+        return id(self)
+
 
 class StructDtype(ExtensionDtype):