DOC: add comment to nargsort call in Series.sort_values

AlexKirko · AlexKirko · commit 733225512431 · 2020-10-20T14:36:57.000+03:00
diff --git a/pandas/core/series.py b/pandas/core/series.py
@@ -3276,6 +3276,7 @@ def sort_values(
 
         arr = self._values
 
+        # GH 35922. Make sorting stable by leveraging nargsort
         sorted_index = nargsort(arr, kind, ascending, na_position, key)
 
         result = self._constructor(arr[sorted_index], index=self.index[sorted_index])
