Support Sphinx 7.3 and drop 3.8 support

Signed-off-by: Bernát Gábor <bgabor8@bloomberg.net>

.github/workflows/check.yml

@@ -24,7 +24,6 @@ jobs:
           - "3.11"
           - "3.10"
           - "3.9"
-          - "3.8"
     steps:
       - name: Setup python for tox
         uses: actions/setup-python@v5

.pre-commit-config.yaml

@@ -5,7 +5,7 @@ repos:
       - id: end-of-file-fixer
       - id: trailing-whitespace
   - repo: https://github.com/python-jsonschema/check-jsonschema
-    rev: 0.28.1
+    rev: 0.28.2
     hooks:
       - id: check-github-workflows
         args: [ "--verbose" ]
@@ -20,12 +20,12 @@ repos:
       - id: tox-ini-fmt
         args: ["-p", "fix"]
   - repo: https://github.com/tox-dev/pyproject-fmt
-    rev: "1.7.0"
+    rev: "1.8.0"
     hooks:
       - id: pyproject-fmt
-        additional_dependencies: ["tox>=4.13"]
+        additional_dependencies: ["tox>=4.14.2"]
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: "v0.3.5"
+    rev: "v0.3.7"
     hooks:
       - id: ruff-format
       - id: ruff

pyproject.toml

@@ -2,7 +2,7 @@
 build-backend = "hatchling.build"
 requires = [
   "hatch-vcs>=0.4",
-  "hatchling>=1.21.1",
+  "hatchling>=1.24",
 ]
 
 [project]
@@ -19,15 +19,14 @@ keywords = [
 license = "MIT"
 maintainers = [{ name = "Bernát Gábor", email = "gaborjbernat@gmail.com" }]
 authors = [{ name = "Bernát Gábor", email = "gaborjbernat@gmail.com" }]
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 classifiers = [
   "Development Status :: 5 - Production/Stable",
   "Framework :: Sphinx :: Extension",
   "Intended Audience :: Developers",
   "License :: OSI Approved :: MIT License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3 :: Only",
-  "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
@@ -38,7 +37,7 @@ dynamic = [
   "version",
 ]
 dependencies = [
-  "Sphinx>=7.1.2",
+  "Sphinx>=7.3.5",
 ]
 optional-dependencies.docs = [
   "furo>=2024.1.29",
@@ -48,12 +47,13 @@ optional-dependencies.numpy = [
 ]
 optional-dependencies.testing = [
   "covdefaults>=2.3",
-  "coverage>=7.4.2",
-  "diff-cover>=8.0.3",
-  "pytest>=8.0.1",
-  "pytest-cov>=4.1",
+  "coverage>=7.4.4",
+  "defusedxml>=0.7.1", # required by sphinx.testing
+  "diff-cover>=9",
+  "pytest>=8.1.1",
+  "pytest-cov>=5",
   "sphobjinv>=2.3.1",
-  "typing-extensions>=4.9",
+  "typing-extensions>=4.11",
 ]
 urls.Changelog = "https://github.com/tox-dev/sphinx-autodoc-typehints/blob/main/CHANGELOG.md"
 urls.Homepage = "https://github.com/tox-dev/sphinx-autodoc-typehints"
@@ -69,7 +69,7 @@ line-length = 120
 
 [tool.ruff]
 line-length = 120
-target-version = "py38"
+target-version = "py39"
 lint.select = ["ALL"]
 lint.isort = { known-first-party = [
   "sphinx_autodoc_typehints",

src/sphinx_autodoc_typehints/__init__.py

@@ -266,10 +266,9 @@ def format_annotation(annotation: Any, config: Config) -> str:  # noqa: C901, PL
         else:
             fmt = [format_annotation(arg, config) for arg in args]
         formatted_args = args_format.format(", ".join(fmt))
-    if formatted_args:
-        formatted_args = "\\ " + formatted_args
 
-    return f":py:{role}:`{prefix}{full_name}`{formatted_args}"
+    escape = "\\ " if formatted_args else ""
+    return f":py:{role}:`{prefix}{full_name}`{escape}{formatted_args}"
 
 
 # reference: https://github.com/pytorch/pytorch/pull/46548/files

src/sphinx_autodoc_typehints/patches.py

@@ -59,7 +59,7 @@ def napoleon_numpy_docstring_return_type_processor(  # noqa: PLR0913, PLR0917
         # Napoleon allows the underline to consist of a bunch of weirder things...
         if len(chars) != 1 or next(iter(chars)) not in "=-~_*+#":
             continue
-        pos = pos + 2  # noqa: PLW2901
+        pos += 2  # noqa: PLW2901
         break
     else:
         return

tests/roots/test-resolve-typing-guard/demo_typing_guard.py

@@ -11,7 +11,7 @@
 
 if TYPE_CHECKING:
     from decimal import Decimal
-    from typing import Sequence
+    from typing import Sequence  # noqa: UP035
 
     from demo_typing_guard_dummy import Literal  # guarded by another `if TYPE_CHECKING` in demo_typing_guard_dummy