Refactor

Author: phofl

pandas/core/indexing.py

@@ -2001,12 +2001,10 @@ def _setitem_single_column(self, loc: int, value, plane_indexer) -> None:
         #  setting in-place would work, i.e. behavior will change.
 
         new_values = self.obj._get_column_array(loc)
-        warn = can_hold_element(orig_values, new_values)
 
-        # Don't issue the warning yet, as we can still trim a few cases where
-        #  behavior will not change.
-
-        if warn:
+        if can_hold_element(orig_values, new_values):
+            # Don't issue the warning yet, as we can still trim a few cases where
+            #  behavior will not change.
 
             if (
                 isinstance(new_values, np.ndarray)