From 786ffe440c6f47c151b587900f054730a48302bd Mon Sep 17 00:00:00 2001
From: Andrew Haigh <hello@nelf.in>
Date: Thu, 20 Oct 2022 23:47:53 +1300
Subject: [PATCH] Fix uncaught ValueError in infer_getitem with zero-step
 slices

Fixes #1843
---
 astroid/inference.py          | 2 ++
 astroid/nodes/node_classes.py | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/astroid/inference.py b/astroid/inference.py
index a71005540b..502e11b1df 100644
--- a/astroid/inference.py
+++ b/astroid/inference.py
@@ -27,6 +27,7 @@
     AstroidError,
     AstroidIndexError,
     AstroidTypeError,
+    AstroidValueError,
     AttributeInferenceError,
     InferenceError,
     NameInferenceError,
@@ -441,6 +442,7 @@ def infer_subscript(
             except (
                 AstroidTypeError,
                 AstroidIndexError,
+                AstroidValueError,
                 AttributeInferenceError,
                 AttributeError,
             ) as exc:
diff --git a/astroid/nodes/node_classes.py b/astroid/nodes/node_classes.py
index 2f515dbe90..06fad5c97e 100644
--- a/astroid/nodes/node_classes.py
+++ b/astroid/nodes/node_classes.py
@@ -22,6 +22,7 @@
 from astroid.exceptions import (
     AstroidIndexError,
     AstroidTypeError,
+    AstroidValueError,
     InferenceError,
     NoDefault,
     ParentMissingError,
@@ -234,6 +235,13 @@ def _container_getitem(instance, elts, index, context=None):
             return new_cls
         if isinstance(index, Const):
             return elts[index.value]
+    except ValueError as exc:
+        raise AstroidValueError(
+            message="Slice {index!r} cannot index container",
+            node=instance,
+            index=index,
+            context=context
+        ) from exc
     except IndexError as exc:
         raise AstroidIndexError(
             message="Index {index!s} out of range",