Merge pull request #1 from rgsl888prabhu/index_changes_to_series_is_in

Fix for missing series index in isin

python/cudf/cudf/core/series.py

@@ -2062,7 +2062,9 @@ def isin(self, values):
         except Exception:
             # pandas functionally returns all False when cleansing via
             # typecasting fails
-            return Series(cupy.zeros(len(self), dtype="bool"))
+            return Series(
+                cupy.zeros(len(self), dtype="bool"), index=self.index
+            )
 
         # If categorical, combine categories first
         if is_categorical_dtype(lhs):
@@ -2078,7 +2080,9 @@ def isin(self, values):
                 # list doesn't have any nulls. If it does have nulls, make
                 # the values list a Categorical with a single null
                 if not rhs.has_nulls:
-                    return Series(cupy.zeros(len(self), dtype="bool"))
+                    return Series(
+                        cupy.zeros(len(self), dtype="bool"), index=self.index
+                    )
                 rhs = Series(pd.Categorical.from_codes([-1], categories=[]))
                 rhs = rhs.cat.set_categories(lhs_cats).astype(self.dtype)
 
@@ -2088,6 +2092,7 @@ def isin(self, values):
         res = res.drop_duplicates(subset="orig_order").reset_index(drop=True)
         res = res["bool"].fillna(False)
         res.name = self.name
+        res.index = self.index
 
         return res
 

python/cudf/cudf/tests/test_dataframe.py

@@ -3627,7 +3627,8 @@ def test_series_value_counts():
     ],
 )
 def test_isin_numeric(data, values):
-    psr = pd.Series(data)
+    index = np.random.randint(0, 100, len(data))
+    psr = pd.Series(data, index=index)
     gsr = Series.from_pandas(psr)
 
     got = gsr.isin(values)