diff --git a/myst_nb/__init__.py b/myst_nb/__init__.py
index ad42c71d..a88d3b94 100644
--- a/myst_nb/__init__.py
+++ b/myst_nb/__init__.py
@@ -1,4 +1,5 @@
 """A docutils/sphinx parser for Jupyter Notebooks."""
+
 __version__ = "1.0.0"
 
 
diff --git a/myst_nb/cli.py b/myst_nb/cli.py
index 58637d03..a96aa260 100644
--- a/myst_nb/cli.py
+++ b/myst_nb/cli.py
@@ -1,4 +1,5 @@
 """A basic CLI for quickstart of a myst_nb project."""
+
 from __future__ import annotations
 
 import argparse
diff --git a/myst_nb/core/config.py b/myst_nb/core/config.py
index 023cccac..c20ce144 100644
--- a/myst_nb/core/config.py
+++ b/myst_nb/core/config.py
@@ -1,4 +1,5 @@
 """Configuration for myst-nb."""
+
 import dataclasses as dc
 from enum import Enum
 from typing import Any, Callable, Dict, Iterable, Literal, Optional, Sequence, Tuple
diff --git a/myst_nb/core/execute/base.py b/myst_nb/core/execute/base.py
index befb6d29..21570315 100644
--- a/myst_nb/core/execute/base.py
+++ b/myst_nb/core/execute/base.py
@@ -1,4 +1,5 @@
 """Module for executing notebooks."""
+
 from __future__ import annotations
 
 from pathlib import Path
diff --git a/myst_nb/core/execute/cache.py b/myst_nb/core/execute/cache.py
index f7a26101..d3966b20 100644
--- a/myst_nb/core/execute/cache.py
+++ b/myst_nb/core/execute/cache.py
@@ -1,4 +1,5 @@
 """Execute a notebook from the cache."""
+
 from __future__ import annotations
 
 from contextlib import nullcontext, suppress
diff --git a/myst_nb/core/execute/direct.py b/myst_nb/core/execute/direct.py
index a8e3e55f..e82624cb 100644
--- a/myst_nb/core/execute/direct.py
+++ b/myst_nb/core/execute/direct.py
@@ -1,4 +1,5 @@
 """Execute a notebook directly."""
+
 from __future__ import annotations
 
 from contextlib import nullcontext
diff --git a/myst_nb/core/execute/inline.py b/myst_nb/core/execute/inline.py
index 13d20786..06078d04 100644
--- a/myst_nb/core/execute/inline.py
+++ b/myst_nb/core/execute/inline.py
@@ -1,4 +1,5 @@
 """Execute a notebook inline."""
+
 from __future__ import annotations
 
 import asyncio
diff --git a/myst_nb/core/lexers.py b/myst_nb/core/lexers.py
index 2d4978b6..d49aa3a5 100644
--- a/myst_nb/core/lexers.py
+++ b/myst_nb/core/lexers.py
@@ -1,4 +1,5 @@
 """Pygments lexers"""
+
 from __future__ import annotations
 
 import re
diff --git a/myst_nb/core/loggers.py b/myst_nb/core/loggers.py
index d898d364..960d5be6 100644
--- a/myst_nb/core/loggers.py
+++ b/myst_nb/core/loggers.py
@@ -9,6 +9,7 @@
 ``logger.warning("message", line=1, subtype="foo")``
 
 """
+
 import logging
 from typing import Union
 
diff --git a/myst_nb/core/nb_to_tokens.py b/myst_nb/core/nb_to_tokens.py
index c8e48f03..8f4d17cb 100644
--- a/myst_nb/core/nb_to_tokens.py
+++ b/myst_nb/core/nb_to_tokens.py
@@ -1,4 +1,5 @@
 """Module for parsing notebooks to Markdown-it tokens."""
+
 from __future__ import annotations
 
 from typing import Any
diff --git a/myst_nb/core/read.py b/myst_nb/core/read.py
index 2b3dae4b..51325229 100644
--- a/myst_nb/core/read.py
+++ b/myst_nb/core/read.py
@@ -1,4 +1,5 @@
 """Module for reading notebook formats from a string input."""
+
 from __future__ import annotations
 
 import dataclasses as dc
diff --git a/myst_nb/core/render.py b/myst_nb/core/render.py
index 4e2a0ba3..4bfcd14e 100644
--- a/myst_nb/core/render.py
+++ b/myst_nb/core/render.py
@@ -3,6 +3,7 @@
 Note, this module purposely does not import any Sphinx modules at the top-level,
 in order for docutils-only use.
 """
+
 from __future__ import annotations
 
 from binascii import a2b_base64
diff --git a/myst_nb/core/utils.py b/myst_nb/core/utils.py
index d1165712..12331541 100644
--- a/myst_nb/core/utils.py
+++ b/myst_nb/core/utils.py
@@ -1,4 +1,5 @@
 """Shared utilities."""
+
 from __future__ import annotations
 
 import re
diff --git a/myst_nb/core/variables.py b/myst_nb/core/variables.py
index 0cfffa5f..13911b1a 100644
--- a/myst_nb/core/variables.py
+++ b/myst_nb/core/variables.py
@@ -1,4 +1,5 @@
 """Utilities for rendering code output variables."""
+
 from __future__ import annotations
 
 from ast import literal_eval
diff --git a/myst_nb/docutils_.py b/myst_nb/docutils_.py
index 7731f0b5..54acc417 100644
--- a/myst_nb/docutils_.py
+++ b/myst_nb/docutils_.py
@@ -1,4 +1,5 @@
 """The docutils parser implementation for myst-nb."""
+
 from __future__ import annotations
 
 from dataclasses import dataclass, field
diff --git a/myst_nb/ext/eval/__init__.py b/myst_nb/ext/eval/__init__.py
index 52c04cd2..03769687 100644
--- a/myst_nb/ext/eval/__init__.py
+++ b/myst_nb/ext/eval/__init__.py
@@ -1,4 +1,5 @@
 """Roles/directives for evaluating variables in the notebook."""
+
 from __future__ import annotations
 
 from functools import partial
@@ -161,9 +162,9 @@ def run(self):
         render: dict[str, Any] = {}
         for key in ("alt", "height", "width", "scale", "class"):
             if key in self.options:
-                render.setdefault("image", {})[
-                    key.replace("classes", "class")
-                ] = self.options[key]
+                render.setdefault("image", {})[key.replace("classes", "class")] = (
+                    self.options[key]
+                )
 
         mime_nodes = render_variable_outputs(
             data, self.document, self.line, self.source, render=render
diff --git a/myst_nb/ext/execution_tables.py b/myst_nb/ext/execution_tables.py
index f349c401..cad89a16 100644
--- a/myst_nb/ext/execution_tables.py
+++ b/myst_nb/ext/execution_tables.py
@@ -4,6 +4,7 @@
 which is then replaced by a table of statistics in a post-transformation
 (once all the documents have been executed and these statistics are available).
 """
+
 from __future__ import annotations
 
 from datetime import datetime
diff --git a/myst_nb/ext/glue/__init__.py b/myst_nb/ext/glue/__init__.py
index 8f35284a..a96f3438 100644
--- a/myst_nb/ext/glue/__init__.py
+++ b/myst_nb/ext/glue/__init__.py
@@ -1,6 +1,7 @@
 """Functionality for storing special data in notebook code cells,
 which can then be inserted into the document body.
 """
+
 from __future__ import annotations
 
 from typing import TYPE_CHECKING, Any
diff --git a/myst_nb/ext/glue/crossref.py b/myst_nb/ext/glue/crossref.py
index f2f0c76c..1cc8c455 100644
--- a/myst_nb/ext/glue/crossref.py
+++ b/myst_nb/ext/glue/crossref.py
@@ -3,6 +3,7 @@
 Note, we restrict this to a only a subset of mime-types and data -> nodes transforms,
 since adding these nodes in a post-transform will not apply any transforms to them.
 """
+
 from __future__ import annotations
 
 from functools import lru_cache
diff --git a/myst_nb/ext/glue/directives.py b/myst_nb/ext/glue/directives.py
index 4d42c15a..faf2ba76 100644
--- a/myst_nb/ext/glue/directives.py
+++ b/myst_nb/ext/glue/directives.py
@@ -3,6 +3,7 @@
 We intentionally do no import sphinx in this module,
 in order to allow docutils-only use without sphinx installed.
 """
+
 from typing import TYPE_CHECKING, Any, Dict, List
 
 from docutils import nodes
@@ -151,9 +152,9 @@ def run(self):
         render: Dict[str, Any] = {}
         for key in ("alt", "height", "width", "scale", "class"):
             if key in self.options:
-                render.setdefault("image", {})[
-                    key.replace("classes", "class")
-                ] = self.options[key]
+                render.setdefault("image", {})[key.replace("classes", "class")] = (
+                    self.options[key]
+                )
         paste_nodes = render_variable_outputs(
             [data], self.document, self.line, self.source, render=render
         )
diff --git a/myst_nb/ext/glue/domain.py b/myst_nb/ext/glue/domain.py
index e00d5239..c31a015b 100644
--- a/myst_nb/ext/glue/domain.py
+++ b/myst_nb/ext/glue/domain.py
@@ -2,6 +2,7 @@
 
 This is required for any directive/role names using `:`.
 """
+
 from sphinx.domains import Domain
 
 from .directives import (
diff --git a/myst_nb/ext/glue/roles.py b/myst_nb/ext/glue/roles.py
index ee8a5b20..f0f718eb 100644
--- a/myst_nb/ext/glue/roles.py
+++ b/myst_nb/ext/glue/roles.py
@@ -3,6 +3,7 @@
 We intentionally do no import sphinx in this module,
 in order to allow docutils-only use without sphinx installed.
 """
+
 from __future__ import annotations
 
 from docutils import nodes
diff --git a/myst_nb/ext/glue/utils.py b/myst_nb/ext/glue/utils.py
index a61b373a..777fd2b0 100644
--- a/myst_nb/ext/glue/utils.py
+++ b/myst_nb/ext/glue/utils.py
@@ -3,6 +3,7 @@
 We intentionally do no import sphinx in this module,
 in order to allow docutils-only use without sphinx installed.
 """
+
 from __future__ import annotations
 
 from functools import partial
diff --git a/myst_nb/ext/utils.py b/myst_nb/ext/utils.py
index d0076ed0..ea0bcb94 100644
--- a/myst_nb/ext/utils.py
+++ b/myst_nb/ext/utils.py
@@ -3,6 +3,7 @@
 We intentionally do no import sphinx in this module,
 in order to allow docutils-only use without sphinx installed.
 """
+
 from __future__ import annotations
 
 from typing import Any
diff --git a/myst_nb/sphinx_.py b/myst_nb/sphinx_.py
index 4885d9ff..8c20e29e 100644
--- a/myst_nb/sphinx_.py
+++ b/myst_nb/sphinx_.py
@@ -1,4 +1,5 @@
 """The sphinx parser implementation for myst-nb."""
+
 from __future__ import annotations
 
 from collections import defaultdict
diff --git a/myst_nb/sphinx_ext.py b/myst_nb/sphinx_ext.py
index 780fbce5..188ec5fe 100644
--- a/myst_nb/sphinx_ext.py
+++ b/myst_nb/sphinx_ext.py
@@ -1,4 +1,5 @@
 """Setup for the myst-nb sphinx extension."""
+
 from __future__ import annotations
 
 import contextlib
diff --git a/myst_nb/warnings_.py b/myst_nb/warnings_.py
index de8e66ce..1c7e9fae 100644
--- a/myst_nb/warnings_.py
+++ b/myst_nb/warnings_.py
@@ -1,4 +1,5 @@
 """Central handling of warnings for the myst-nb extension."""
+
 from __future__ import annotations
 
 from enum import Enum
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 2153a650..18e7001a 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -1,4 +1,5 @@
 """Test the quickstart CLI"""
+
 import os
 from pathlib import Path
 
diff --git a/tests/test_codecell_file.py b/tests/test_codecell_file.py
index 1af9ce8f..ab447279 100644
--- a/tests/test_codecell_file.py
+++ b/tests/test_codecell_file.py
@@ -1,4 +1,5 @@
 """Test notebooks containing code cells with the `load` option."""
+
 import pytest
 from sphinx.util.fileutil import copy_asset_file
 
diff --git a/tests/test_docutils.py b/tests/test_docutils.py
index 3f3e3af6..74ffcc85 100644
--- a/tests/test_docutils.py
+++ b/tests/test_docutils.py
@@ -1,4 +1,5 @@
 """Run parsing tests against the docutils parser."""
+
 from io import StringIO
 import json
 from pathlib import Path
diff --git a/tests/test_eval.py b/tests/test_eval.py
index 3a87eab1..7b2da350 100644
--- a/tests/test_eval.py
+++ b/tests/test_eval.py
@@ -1,4 +1,5 @@
 """Test the `eval` directives and roles."""
+
 import pytest
 
 
diff --git a/tests/test_execute.py b/tests/test_execute.py
index f39d1df0..b6074c7f 100644
--- a/tests/test_execute.py
+++ b/tests/test_execute.py
@@ -1,4 +1,5 @@
 """Test sphinx builds which execute notebooks."""
+
 import os
 from pathlib import Path
 
diff --git a/tests/test_glue.py b/tests/test_glue.py
index 119e0b69..e09e8249 100644
--- a/tests/test_glue.py
+++ b/tests/test_glue.py
@@ -1,4 +1,5 @@
 """Test the `glue` directives and roles."""
+
 from IPython.core.displaypub import DisplayPublisher
 from IPython.core.interactiveshell import InteractiveShell
 import nbformat
diff --git a/tests/test_parser.py b/tests/test_parser.py
index 37f510b8..0a6f440a 100644
--- a/tests/test_parser.py
+++ b/tests/test_parser.py
@@ -1,4 +1,5 @@
 """Test parsing of already executed notebooks."""
+
 import os
 from pathlib import Path
 
diff --git a/tests/test_render_outputs.py b/tests/test_render_outputs.py
index 29a3be0c..5c16eb42 100644
--- a/tests/test_render_outputs.py
+++ b/tests/test_render_outputs.py
@@ -1,4 +1,5 @@
 """Tests for rendering code cell outputs."""
+
 import pytest
 
 from myst_nb.core.render import EntryPointError, load_renderer