Update ruff config

.pre-commit-config.yaml

@@ -21,16 +21,10 @@ repos:
       - id: trailing-whitespace
 
   - repo: https://github.com/python-jsonschema/check-jsonschema
-    rev: 0.27.2
+    rev: 0.27.3
     hooks:
       - id: check-github-workflows
 
-  - repo: https://github.com/adamchainz/blacken-docs
-    rev: '1.16.0'
-    hooks:
-      - id: blacken-docs
-        additional_dependencies: [black==23.7.0]
-
   - repo: https://github.com/codespell-project/codespell
     rev: 'v2.2.6'
     hooks:
@@ -60,7 +54,7 @@ repos:
       - id: rst-inline-touching-normal
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.1.6
+    rev: v0.1.8
     hooks:
       - id: ruff
         types_or: [ python, jupyter ]

docs/source/conf.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python3
-#
 # Jupyter Notebook documentation build configuration file, created by
 # sphinx-quickstart on Mon Apr 13 09:51:11 2015.
 #
@@ -73,7 +71,7 @@
 ]
 
 try:
-    import enchant  # type:ignore  # noqa
+    import enchant  # noqa: F401
 
     extensions += ["sphinxcontrib.spelling"]
 except ImportError:
@@ -97,7 +95,7 @@
 
 # General information about the project.
 project = "Jupyter Notebook"
-copyright = "2015, Jupyter Team, https://jupyter.org"  # noqa
+copyright = "2015, Jupyter Team, https://jupyter.org"
 author = "The Jupyter Team"
 
 # ghissue config
@@ -109,7 +107,7 @@
 #
 _version_py = os.path.join(here, "../../notebook/_version.py")
 version_ns = {}
-exec(compile(open(_version_py).read(), _version_py, "exec"), version_ns)  # noqa
+exec(compile(open(_version_py).read(), _version_py, "exec"), version_ns)  # noqa: S102, SIM115
 # The short X.Y version.
 version = "%i.%i" % version_ns["version_info"][:2]
 # The full version, including alpha/beta/rc tags.

notebook/__init__.py

@@ -2,7 +2,7 @@
 
 from typing import Any
 
-from ._version import __version__  # noqa
+from ._version import __version__  # noqa: F401
 
 
 def _jupyter_server_extension_paths() -> list[dict[str, str]]:

notebook/_version.py

@@ -23,7 +23,7 @@
 
 _version_fields = _version_regex.match(__version__).groupdict()  # type:ignore[union-attr]
 
-VersionInfo = namedtuple("VersionInfo", ["major", "minor", "micro", "releaselevel", "serial"])
+VersionInfo = namedtuple("VersionInfo", ["major", "minor", "micro", "releaselevel", "serial"])  # noqa: PYI024
 
 version_info = VersionInfo(
     *[

notebook/app.py

@@ -4,7 +4,7 @@
 import os
 import re
 import typing as t
-from os.path import join as pjoin
+from pathlib import Path
 
 from jupyter_client.utils import ensure_async  # type:ignore[attr-defined]
 from jupyter_core.application import base_aliases
@@ -36,11 +36,11 @@
 
 from ._version import __version__
 
-HERE = os.path.dirname(__file__)
+HERE = Path(__file__).parent.resolve()
 
 Flags = t.Dict[t.Union[str, t.Tuple[str, ...]], t.Tuple[t.Union[t.Dict[str, t.Any], Config], str]]
 
-app_dir = get_app_dir()
+app_dir = Path(get_app_dir())
 version = __version__
 
 # mypy: disable-error-code="no-untyped-call"
@@ -72,7 +72,7 @@ def get_page_config(self) -> dict[str, t.Any]:
 
         server_root = self.settings.get("server_root_dir", "")
         server_root = server_root.replace(os.sep, "/")
-        server_root = os.path.normpath(os.path.expanduser(server_root))
+        server_root = os.path.normpath(Path(server_root).expanduser())
         try:
             # Remove the server_root from pref dir
             if self.serverapp.preferred_dir != server_root:
@@ -149,7 +149,7 @@ async def get(self, path: str = "") -> None:
 
             tpl = self.render_template("tree.html", page_config=page_config)
             return self.write(tpl)
-        elif await ensure_async(cm.file_exists(path)):
+        if await ensure_async(cm.file_exists(path)):
             # it's not a directory, we have redirecting to do
             model = await ensure_async(cm.get(path, content=False))
             if model["type"] == "notebook":
@@ -159,15 +159,15 @@ async def get(self, path: str = "") -> None:
                 url = ujoin(self.base_url, "files", url_escape(path))
             self.log.debug("Redirecting %s to %s", self.request.path, url)
             self.redirect(url)
-        else:
-            raise web.HTTPError(404)
+            return None
+        raise web.HTTPError(404)
 
 
 class ConsoleHandler(NotebookBaseHandler):
     """A console page handler."""
 
     @web.authenticated
-    def get(self, path: str | None = None) -> t.Any:
+    def get(self, path: str | None = None) -> t.Any:  # noqa: ARG002
         """Get the console page."""
         tpl = self.render_template("consoles.html", page_config=self.get_page_config())
         return self.write(tpl)
@@ -177,7 +177,7 @@ class TerminalHandler(NotebookBaseHandler):
     """A terminal page handler."""
 
     @web.authenticated
-    def get(self, path: str | None = None) -> t.Any:
+    def get(self, path: str | None = None) -> t.Any:  # noqa: ARG002
         """Get the terminal page."""
         tpl = self.render_template("terminals.html", page_config=self.get_page_config())
         return self.write(tpl)
@@ -187,7 +187,7 @@ class FileHandler(NotebookBaseHandler):
     """A file page handler."""
 
     @web.authenticated
-    def get(self, path: str | None = None) -> t.Any:
+    def get(self, path: str | None = None) -> t.Any:  # noqa: ARG002
         """Get the file page."""
         tpl = self.render_template("edit.html", page_config=self.get_page_config())
         return self.write(tpl)
@@ -197,7 +197,7 @@ class NotebookHandler(NotebookBaseHandler):
     """A notebook page handler."""
 
     @web.authenticated
-    def get(self, path: str | None = None) -> t.Any:
+    def get(self, path: str | None = None) -> t.Any:  # noqa: ARG002
         """Get the notebook page."""
         tpl = self.render_template("notebooks.html", page_config=self.get_page_config())
         return self.write(tpl)
@@ -214,13 +214,13 @@ def get(self) -> t.Any:
         page_config = self.get_page_config()
         custom_css_file = f"{page_config['jupyterConfigDir']}/custom/custom.css"
 
-        if not os.path.isfile(custom_css_file):
+        if not Path(custom_css_file).is_file():
             static_path_root = re.match("^(.*?)static", page_config["staticDir"])
             if static_path_root is not None:
                 custom_dir = static_path_root.groups()[0]
                 custom_css_file = f"{custom_dir}custom/custom.css"
 
-        with open(custom_css_file) as css_f:
+        with Path(custom_css_file).open() as css_f:
             return self.write(css_f.read())
 
 
@@ -269,23 +269,23 @@ class JupyterNotebookApp(NotebookConfigShimMixin, LabServerApp):  # type:ignore[
 
     @default("static_dir")
     def _default_static_dir(self) -> str:
-        return os.path.join(HERE, "static")
+        return str(HERE / "static")
 
     @default("templates_dir")
     def _default_templates_dir(self) -> str:
-        return os.path.join(HERE, "templates")
+        return str(HERE / "templates")
 
     @default("app_settings_dir")
     def _default_app_settings_dir(self) -> str:
-        return pjoin(app_dir, "settings")
+        return str(app_dir / "settings")
 
     @default("schemas_dir")
     def _default_schemas_dir(self) -> str:
-        return pjoin(app_dir, "schemas")
+        return str(app_dir / "schemas")
 
     @default("themes_dir")
     def _default_themes_dir(self) -> str:
-        return pjoin(app_dir, "themes")
+        return str(app_dir / "themes")
 
     @default("user_settings_dir")
     def _default_user_settings_dir(self) -> str:
@@ -343,7 +343,7 @@ def initialize_handlers(self) -> None:
         self.handlers.append(("/custom/custom.css", CustomCssHandler))
         super().initialize_handlers()
 
-    def initialize(self, argv: list[str] | None = None) -> None:
+    def initialize(self, argv: list[str] | None = None) -> None:  # noqa: ARG002
         """Subclass because the ExtensionApp.initialize() method does not take arguments"""
         super().initialize()
 

pyproject.toml

@@ -231,38 +231,52 @@ source = ["notebook"]
 files = "notebook"
 python_version = "3.8"
 strict = true
-hide_error_codes = false
 enable_error_code = ["ignore-without-code", "redundant-expr", "truthy-bool"]
 warn_unreachable = true
 
 [tool.ruff]
 line-length = 100
 
+[tool.ruff.format]
+docstring-code-format = true
+
 [tool.ruff.lint]
-select = [
-  "A", "B", "C", "DTZ", "E", "EM", "F", "FBT", "I", "ICN", "N",
-  "PLC", "PLE", "PLR", "PLW", "Q", "RUF", "S", "SIM", "T", "TID", "UP",
-  "W", "YTT",
+extend-select = [
+  "B",           # flake8-bugbear
+  "I",           # isort
+  "ARG",         # flake8-unused-arguments
+  "C4",          # flake8-comprehensions
+  "EM",          # flake8-errmsg
+  "ICN",         # flake8-import-conventions
+  "G",           # flake8-logging-format
+  "PGH",         # pygrep-hooks
+  "PIE",         # flake8-pie
+  "PL",          # pylint
+  "PTH",         # flake8-use-pathlib
+  "PT",          # flake8-pytest-style
+  "RET",         # flake8-return
+  "RUF",         # Ruff-specific
+  "SIM",         # flake8-simplify
+  "T20",         # flake8-print
+  "UP",          # pyupgrade
+  "YTT",         # flake8-2020
+  "EXE",         # flake8-executable
+  "PYI",         # flake8-pyi
+  "S",           # flake8-bandit
 ]
 ignore = [
-# Q000 Single quotes found but double quotes preferred
-"Q000",
-# FBT001 Boolean positional arg in function definition
-"FBT001", "FBT002", "FBT003",
-# C408 Unnecessary `dict` call (rewrite as a literal)
-"C408", "C416",
-# RUF012 Mutable class attributes should be annotated with `typing.ClassVar`
-"RUF012",
+  "PLR",    # Design related pylint codes
+  "C408", "C416",  # Unnecessary `dict` call (rewrite as a literal)
+  "RUF012",   # Mutable class attributes should be annotated with `typing.ClassVar`
 ]
 
 [tool.ruff.lint.per-file-ignores]
 # S101 Use of `assert` detected
 # F841 Local variable `foo` is assigned to but never used
-# PLR2004 Magic value used in comparison
-"tests/*" = ["S101", "F841", "PLR2004"]
-# undefined name 'c'
+"tests/*" = ["S101", "F841", "ARG", "PTH"]
+"docs/source/conf.py" = ["PTH"]
 "ui-tests/test/jupyter_server_config.py" = ["F821"]
-"*.ipynb" = ["E402", "B018", "E501", "T201"]
+"*.ipynb" = ["E402", "B018", "E501", "T201", "RET"]
 
 [tool.interrogate]
 ignore-init-module=true
@@ -275,4 +289,4 @@ fail-under=100
 exclude = ["tests", "ui-tests", "docs", "node_modules", "setup.py"]
 
 [tool.repo-review]
-ignore = ["PY007", "GH102", "PC180"]
+ignore = ["GH102", "PC180", "PC111"]

tests/conftest.py

@@ -32,8 +32,8 @@ def mkdir(tmp_path, *parts):
 labextensions_dir = pytest.fixture(lambda tmp_path: mkdir(tmp_path, "labextensions_dir"))
 
 
-@pytest.fixture
-def make_notebook_app(  # noqa PLR0913
+@pytest.fixture()
+def make_notebook_app(  # PLR0913
     jp_root_dir,
     jp_template_dir,
     app_settings_dir,
@@ -92,7 +92,7 @@ def _make_notebook_app(**kwargs):
     )
 
     # Copy the schema files.
-    test_data = str(files("jupyterlab_server.test_data")._paths[0])  # type: ignore
+    test_data = str(files("jupyterlab_server.test_data")._paths[0])
     src = pathlib.PurePath(test_data, "schemas", "@jupyterlab")
     dst = pathlib.PurePath(str(schemas_dir), "@jupyterlab")
     if os.path.exists(dst):
@@ -131,7 +131,7 @@ def _make_notebook_app(**kwargs):
     return _make_notebook_app
 
 
-@pytest.fixture
+@pytest.fixture()
 def notebookapp(jp_serverapp, make_notebook_app):
     app = make_notebook_app()
     app._link_jupyter_server_extension(jp_serverapp)

tests/test_app.py

@@ -6,7 +6,7 @@
 from notebook.app import JupyterNotebookApp, TreeHandler
 
 
-@pytest.fixture
+@pytest.fixture()
 def notebooks(jp_create_notebook, notebookapp):
     nbpaths = (
         "notebook1.ipynb",
@@ -48,7 +48,7 @@ def redirect(self, url):
         nonlocal redirected_url
         redirected_url = url
 
-    TreeHandler.redirect = redirect  # type:ignore
+    TreeHandler.redirect = redirect
     await jp_fetch("tree", "notebook1.ipynb")
     assert redirected_url == "/a%40b/notebooks/notebook1.ipynb"