.. _invalid-slice-index: invalid-slice-index / E1127 =========================== **Message emitted:** ``Slice index is not an int, None, or instance with __index__`` **Description:** *Used when a slice index is not an integer, None, or an object with an __index__ method.* **Problematic code:** .. literalinclude:: /data/messages/i/invalid-slice-index/bad.py :language: python **Correct code:** .. literalinclude:: /data/messages/i/invalid-slice-index/good.py :language: python Created by the `typecheck `__ checker.