REFACTOR-#5467: remove FutureWarning for df.iloc[:, i] = newvals (#…

…5468) Signed-off-by: Anatoly Myachev <anatoly.myachev@intel.com>
modin-project · Dec 24, 2022 · 5ebbac6 · 5ebbac6
1 parent b8b58cc
commit 5ebbac6
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/modin/core/dataframe/pandas/utils.py b/modin/core/dataframe/pandas/utils.py
@@ -40,7 +40,7 @@ def concatenate(dfs):
         columns = [df.iloc[:, i] for df in dfs]
         union = union_categoricals(columns)
         for df in dfs:
-            df.iloc[:, i] = pandas.Categorical(
-                df.iloc[:, i], categories=union.categories
+            df.isetitem(
+                i, pandas.Categorical(df.iloc[:, i], categories=union.categories)
             )
     return pandas.concat(dfs)