Debugging

restrictedpython_code_eval.py

@@ -17,6 +17,7 @@ Lightly adapted and mostly copied verbatim from the implementation in `evaluate`
 """
 import ast
 import contextlib
+import copy
 import faulthandler
 import itertools
 import importlib
@@ -84,13 +85,26 @@ class CodeEvalRestrictingTransformer(RestrictingNodeTransformer):
     def visit_AugAssign(self, node):
         # allow += and similar operations for list indices
         if isinstance(node.target, ast.Subscript):
+            # new_name = copy.deepcopy(node.target.value)
+            # new_name.ctx = ast.Load()  # type: ignore
+
+            new_subscript = copy.deepcopy(node.target)
+            new_subscript.ctx = ast.Load()
+            if hasattr(new_subscript.value, 'ctx'):
+                new_subscript.value.ctx = ast.Load()  # type: ignore
+
             new_node = ast.Assign(
                 targets=[node.target],
                 value=ast.Call(
                     func=ast.Name('_inplacevar_', ast.Load()),
                     args=[
                         ast.Str(IOPERATOR_TO_STR[type(node.op)]),
-                        node.target,
+                        new_subscript,
+                        # ast.Subscript(
+                        #     value=new_name,
+                        #     slice=node.target.slice,
+                        #     ctx=ast.Load(),
+                        # ),
                         node.value
                     ],
                     keywords=[]))