revert broken test changes

.pre-commit-config.yaml

@@ -12,10 +12,16 @@
 #
 # See https://github.com/pre-commit/pre-commit
 
+exclude: |
+    (?x)(
+        ^tests/test_cydifflib_expect.html
+    )
+
+
 repos:
 # Standard hooks
 - repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: "v4.4.0"
+  rev: "v4.5.0"
   hooks:
   - id: check-added-large-files
   - id: check-case-conflict
@@ -32,26 +38,26 @@ repos:
 
 # Black, the code formatter, natively supports pre-commit
 - repo: https://github.com/psf/black
-  rev: "23.3.0" # Keep in sync with blacken-docs
+  rev: "24.1.1" # Keep in sync with blacken-docs
   hooks:
   - id: black
 
 # Also code format the docs
 - repo: https://github.com/asottile/blacken-docs
-  rev: "1.13.0"
+  rev: "1.16.0"
   hooks:
   - id: blacken-docs
     additional_dependencies:
     - black==22.8.0 # keep in sync with black hook
 
 # Changes tabs to spaces
 - repo: https://github.com/Lucas-C/pre-commit-hooks
-  rev: "v1.5.1"
+  rev: "v1.5.4"
   hooks:
   - id: remove-tabs
 
 - repo: https://github.com/sirosen/texthooks
-  rev: "0.5.0"
+  rev: "0.6.4"
   hooks:
   - id: fix-ligatures
   - id: fix-smartquotes
@@ -68,7 +74,7 @@ repos:
 
 # PyLint has native support - not always usable, but works for us
 - repo: https://github.com/PyCQA/pylint
-  rev: "v3.0.0a6"
+  rev: "v3.0.3"
   hooks:
   - id: pylint
     files: ^pybind11
@@ -101,22 +107,22 @@ repos:
     additional_dependencies: [cmake, ninja]
 
 - repo: https://github.com/charliermarsh/ruff-pre-commit
-  rev: v0.0.261
+  rev: v0.2.0
   hooks:
   - id: ruff
     args: ["--fix", "--show-fixes"]
 
 # Check for spelling
 - repo: https://github.com/codespell-project/codespell
-  rev: "v2.2.4"
+  rev: "v2.2.6"
   hooks:
   - id: codespell
     exclude: ".*/test_.*.py"
     args: ["-L", "aline,alo,ore"]
 
 # Check for common shell mistakes
 - repo: https://github.com/shellcheck-py/shellcheck-py
-  rev: "v0.9.0.2"
+  rev: "v0.9.0.6"
   hooks:
   - id: shellcheck
 

pyproject.toml

@@ -78,7 +78,10 @@ extend-ignore = [
   "PT004",  # Use underscore for non-returning fixture (use usefixture instead)
   "PTH123", # use pathlib instead of builtin open
 
-  "F403" # todo we should do better in the future
+  "F403", # todo we should do better in the future
+  "RUF001", # this simply leads to incorrect code
+
+  "PT027" # we want to keep the test code close to the one in cpython
 ]
 target-version = "py37"
 src = ["src"]

src/cydifflib/__init__.py

@@ -25,6 +25,7 @@
 Class HtmlDiff:
     For producing HTML side by side comparison with change highlights.
 """
+
 from __future__ import annotations
 
 __author__ = "Max Bachmann"