fix bug in rename: rename also in global and nonlocal decls

CHANGELOG.md

@@ -18,6 +18,7 @@
 **Fixed**:
 
 - Fix https://github.com/Technologicat/mcpyrate/issues/41. The unparser now understands the Python 3.10 pattern matching construct `match`/`case`.
+- Fix bug in `rename`: rename also in `global` and `nonlocal` declarations.
 
 
 ---

mcpyrate/utils.py

@@ -134,6 +134,10 @@ def transform(self, tree):
             elif T is ast.ExceptHandler:
                 if tree.name == oldname:
                     tree.name = newname
+            elif T in (ast.Global, ast.Nonlocal):
+                for j in range(len(tree.names)):
+                    if tree.names[j] == oldname:
+                        tree.names[j] = newname
             return self.generic_visit(tree)
     return Renamer().visit(tree)