DX: drop Python 3.6 support

.cspell.json

@@ -33,8 +33,6 @@
     "docs/conf.py",
     "labels/*.toml",
     "pyproject.toml",
-    "setup.cfg",
-    "setup.py",
     "tox.ini",
     "typings"
   ],

docs/conf.py

@@ -4,11 +4,24 @@
 documentation: https://www.sphinx-doc.org/en/master/usage/configuration.html
 """
 
+from __future__ import annotations
+
 from sphinx_api_relink.helpers import get_package_version
 
 REPO_NAME = "repo-maintenance"
 PACKAGE_NAME = "repoma"
 
+api_target_substitutions: dict[str, str | tuple[str, str]] = {
+    "Array": "tomlkit.items.Array",
+    "ConfigParser": "configparser.ConfigParser",
+    "K": "typing.TypeVar",
+    "Path": "pathlib.Path",
+    "PythonVersion": "typing.TypeVar",
+    "T": "typing.TypeVar",
+    "TOMLDocument": "tomlkit.TOMLDocument",
+    "Table": "tomlkit.items.Table",
+    "V": "typing.TypeVar",
+}
 author = "Common Partial Wave Analysis"
 autodoc_member_order = "bysource"
 autodoc_typehints_format = "short"
@@ -62,7 +75,7 @@
     "colon_fence",
 ]
 nitpick_ignore = [
-    ("py:class", "tomlkit.container.Container"),
+    ("py:class", "CommentedMap"),
 ]
 nitpick_ignore_regex = [
     ("py:class", r"^.*.[A-Z]$"),

pyproject.toml

@@ -1,10 +1,124 @@
 [build-system]
+build-backend = "setuptools.build_meta"
 requires = [
-    "setuptools>=36.2.1", # environment markers
+    "setuptools>=61.2",
     "setuptools_scm",
-    "wheel",
 ]
 
+[project]
+authors = [{name = "Common Partial Wave Analysis", email = "compwa-admin@ep1.rub.de"}]
+classifiers = [
+    "Development Status :: 3 - Alpha",
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: BSD License",
+    "Natural Language :: English",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.7",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python",
+    "Typing :: Typed",
+]
+dependencies = [
+    "PyYAML",
+    "attrs >=20.1.0", # https://www.attrs.org/en/stable/changelog.html#id82
+    "html2text",
+    "ini2toml",
+    "nbformat",
+    "pip-tools",
+    "pre-commit",
+    "ruamel.yaml", # better YAML dumping
+    "tomlkit",
+]
+description = "Pre-commit hooks that ensure that ComPWA repositories have a similar developer set-up"
+dynamic = ["version"]
+license = {text = "BSD 3-Clause License"}
+maintainers = [{email = "compwa-admin@ep1.rub.de"}]
+name = "repo-maintenance"
+requires-python = ">=3.7"
+
+[project.optional-dependencies]
+dev = [
+    "labels",
+    "repo-maintenance[doc]",
+    "repo-maintenance[sty]",
+    "repo-maintenance[test]",
+    "sphinx-autobuild",
+    "tox >=1.9", # for skip_install, use_develop
+]
+doc = [
+    "Sphinx",
+    "myst-parser",
+    "sphinx-api-relink >=0.0.3",
+    "sphinx-api-relink",
+    "sphinx-argparse",
+    "sphinx-book-theme",
+    "sphinx-copybutton",
+]
+format = [
+    "black",
+]
+lint = [
+    "radon",
+    "repo-maintenance[mypy]",
+    "ruff",
+]
+mypy = [
+    "mypy",
+    "sphinx-api-relink >=0.0.3",
+    "types-PyYAML",
+    "types-toml",
+]
+sty = [
+    "pre-commit >=1.4.0",
+    "repo-maintenance[format]",
+    "repo-maintenance[lint]",
+    "repo-maintenance[test]", # for pytest type hints
+]
+test = [
+    "pytest",
+    "pytest-cov",
+    "pytest-xdist",
+]
+
+[project.readme]
+content-type = "text/markdown"
+file = "README.md"
+
+[project.scripts]
+check-dev-files = "repoma.check_dev_files:main"
+colab-toc-visible = "repoma.colab_toc_visible:main"
+fix-nbformat-version = "repoma.fix_nbformat_version:main"
+format-setup-cfg = "repoma.format_setup_cfg:main"
+pin-nb-requirements = "repoma.pin_nb_requirements:main"
+repoma-self-check = "repoma.self_check:main"
+set-nb-cells = "repoma.set_nb_cells:main"
+
+[project.urls]
+Source = "https://github.com/ComPWA/repo-maintenance"
+Tracker = "https://github.com/ComPWA/repo-maintenance/issues"
+
+[tool.setuptools]
+include-package-data = false
+license-files = ["LICENSE"]
+package-dir = {"" = "src"}
+
+[tool.setuptools.package-data]
+repoma = [
+    ".github/*",
+    ".github/**/*",
+    ".template/*",
+    ".template/.*",
+    "py.typed",
+]
+
+[tool.setuptools.packages.find]
+namespaces = false
+where = ["src"]
+
 [tool.setuptools_scm]
 write_to = "src/repoma/version.py"
 
@@ -28,7 +142,6 @@ target-version = [
     "py310",
     "py311",
     "py312",
-    "py36",
     "py37",
     "py38",
     "py39",
@@ -130,6 +243,7 @@ extend-select = [
     "D",
     "EM",
     "ERA",
+    "FA",
     "I",
     "ICN",
     "INP",

src/repoma/check_dev_files/__init__.py

@@ -1,8 +1,10 @@
 """A collection of scripts that check the file structure of a repository."""
 
+from __future__ import annotations
+
 import sys
 from argparse import ArgumentParser
-from typing import List, Optional, Sequence
+from typing import Sequence
 
 from repoma.check_dev_files.deprecated import remove_deprecated_tools
 from repoma.utilities.executor import Executor
@@ -33,7 +35,7 @@
 )
 
 
-def main(argv: Optional[Sequence[str]] = None) -> int:
+def main(argv: Sequence[str] | None = None) -> int:
     parser = _create_argparse()
     args = parser.parse_args(argv)
     is_python_repo = not args.no_python
@@ -243,7 +245,7 @@ def _create_argparse() -> ArgumentParser:
     return parser
 
 
-def _to_list(arg: str) -> List[str]:
+def _to_list(arg: str) -> list[str]:
     """Create a comma-separated list from a string argument.
 
     >>> _to_list('a c , test,b')

src/repoma/check_dev_files/citation.py

@@ -1,9 +1,10 @@
 """Check citation files."""
 
+from __future__ import annotations
+
 import json
 import os
 from textwrap import dedent
-from typing import Dict, List, Optional, Set
 
 from html2text import HTML2Text
 from ruamel.yaml import YAML
@@ -112,8 +113,8 @@ def _write_citation_cff(citation_cff: CommentedMap) -> None:
         yaml.dump(citation_cff, stream)
 
 
-def _get_authors(zenodo: dict) -> Optional[List[Dict[str, str]]]:
-    creators: Optional[List[Dict[str, str]]] = zenodo.get("creators")
+def _get_authors(zenodo: dict) -> list[dict[str, str]] | None:
+    creators: list[dict[str, str]] | None = zenodo.get("creators")
     if creators is None:
         return None
     return [__convert_author(item) for item in creators]
@@ -132,10 +133,10 @@ def __convert_author(creator: dict) -> dict:
         "family-names": family_name.strip(),
         "given-names": given_names.strip(),
     }
-    affiliation: Optional[str] = creator.get("affiliation")
+    affiliation: str | None = creator.get("affiliation")
     if affiliation is not None:
         author_info["affiliation"] = affiliation
-    orcid: Optional[str] = creator.get("orcid")
+    orcid: str | None = creator.get("orcid")
     if orcid is not None:
         author_info["orcid"] = f"https://orcid.org/{orcid}"
     return author_info
@@ -160,7 +161,7 @@ def check_citation_keys() -> None:
     if not citation_cff:
         msg = f"{CONFIG_PATH.citation} is empty"
         raise PrecommitError(msg)
-    existing: Set[str] = set(citation_cff)
+    existing: set[str] = set(citation_cff)
     missing_keys = expected - existing
     if missing_keys:
         sorted_keys = sorted(missing_keys)