Edit: never mind, I read it wrong.

---

That is not save at all. You could always hijack builtin functions within untrusted code.

  def untrusted_function():
      original_map = map
  
      def noisy_map(func, *iterables):
          print(f"--- Log: map() called on {func.__name__} ---")
          return original_map(func, *iterables)
  
      globals()['map'] = noisy_map