From 15b2bc2e215bc3d0ab37508eeeb624ede5da0d36 Mon Sep 17 00:00:00 2001
From: Steven Silvester <steven.silvester@ieee.org>
Date: Thu, 21 Dec 2023 11:04:37 -0600
Subject: [PATCH] Restore removed import (#2086)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
---
 CHANGELOG.md                       | 1 +
 nbconvert/preprocessors/execute.py | 1 +
 pyproject.toml                     | 7 +++----
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1b9a60741..1224c3f18 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1416,6 +1416,7 @@ raw template
 {%- endblock in_prompt -%}
     """
 
+
 exporter_attr = AttrExporter()
 output_attr, _ = exporter_attr.from_notebook_node(nb)
 assert "raw template" in output_attr
diff --git a/nbconvert/preprocessors/execute.py b/nbconvert/preprocessors/execute.py
index 5e8403350..2d6950f4a 100644
--- a/nbconvert/preprocessors/execute.py
+++ b/nbconvert/preprocessors/execute.py
@@ -7,6 +7,7 @@
 from jupyter_client.manager import KernelManager
 from nbclient.client import NotebookClient
 from nbclient.client import execute as _execute
+from nbclient.exceptions import CellExecutionError  # noqa: F401
 
 # Backwards compatibility for imported name
 # Copyright (c) IPython Development Team.
diff --git a/pyproject.toml b/pyproject.toml
index 4474667ac..b849ae88c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -221,10 +221,9 @@ ignore = [
   "RUF012", # Mutable class attributes should be annotated
 ]
 unfixable = [
-  # Don't touch print statements
-  "T201",
-  # Don't touch noqa lines
-  "RUF100",
+  "T201",   # Don't touch print statements
+  "RUF100", # Don't touch noqa lines
+  "F401",    # Unused imports
 ]
 
 [tool.ruff.lint.per-file-ignores]