cleanup

pydata · Jul 18, 2024 · 0a4395a · 0a4395a
1 parent 5ad66c3
commit 0a4395a
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/xarray/core/groupers.py b/xarray/core/groupers.py
@@ -360,8 +360,9 @@ def _get_index_and_items(self) -> tuple[pd.Index, pd.Series, np.ndarray]:
 
     def first_items(self) -> tuple[pd.Series, np.ndarray]:
         from xarray.coding.cftimeindex import CFTimeIndex
+        from xarray.core.resample_cftime import CFTimeGrouper
 
-        if isinstance(self.group_as_index, CFTimeIndex):
+        if isinstance(self.index_grouper, CFTimeGrouper):
             return self.index_grouper.first_items(
                 cast(CFTimeIndex, self.group_as_index)
             )