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[FURB123]: Replace `str(x)` with `x`

Author: DimitriPapadopoulos

distutils/_collections.py

@@ -185,7 +185,7 @@ def bounds(self):
         return (sorted_keys[RangeMap.first_item], sorted_keys[RangeMap.last_item])
 
     # some special values for the RangeMap
-    undefined_value = type(str('RangeValueUndefined'), (), {})()
+    undefined_value = type('RangeValueUndefined', (), {})()
 
     class Item(int):
         "RangeMap Item"