feat: Python 3.7+

.github/workflows/build.yml

@@ -40,7 +40,7 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - os: ubuntu-20.04
+          - os: ubuntu-22.04
             arch: "x86_64"
           - os: ubuntu-22.04
             arch: "i686"
@@ -78,16 +78,6 @@ jobs:
           name: cibw-wheels-${{ matrix.os }}-${{ matrix.arch }}
           path: ./wheelhouse/*.whl
 
-      - name: Install Ubuntu Python 2.7
-        if: matrix.os == 'ubuntu-20.04'
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y --no-install-recommends python2 python3-virtualenv
-          virtualenv -p python2 ${HOME}/cp27
-          ${HOME}/cp27/bin/python -m pip install -U pip
-          ${HOME}/cp27/bin/python -m pip install -U setuptools wheel
-          echo "${HOME}/cp27/bin" >> $GITHUB_PATH
-
       - name: Test wheel on host Linux
         if: runner.os == 'Linux' && matrix.arch == 'x86_64'
         run: |

.pre-commit-config.yaml

@@ -12,10 +12,29 @@ repos:
   - id: mixed-line-ending
   - id: requirements-txt-fixer
   - id: trailing-whitespace
-  - id: fix-encoding-pragma
 
 - repo: https://github.com/astral-sh/ruff-pre-commit
   rev: "v0.3.4"
   hooks:
   - id: ruff
     args: [--fix, --show-fixes]
+
+- repo: https://github.com/pre-commit/mirrors-mypy
+  rev: "v1.10.0"
+  hooks:
+    - id: mypy
+      files: src
+      args: []
+
+- repo: https://github.com/abravalheri/validate-pyproject
+  rev: "v0.16"
+  hooks:
+    - id: validate-pyproject
+      additional_dependencies: ["validate-pyproject-schema-store[all]"]
+
+- repo: https://github.com/python-jsonschema/check-jsonschema
+  rev: "0.28.2"
+  hooks:
+    - id: check-dependabot
+    - id: check-github-workflows
+    - id: check-readthedocs

CONTRIBUTING.rst

@@ -102,7 +102,7 @@ Before you submit a pull request, check that it meets these guidelines:
    your new functionality into a function with a docstring, and add the
    feature to the list in `README.rst`.
 
-3. The pull request should work for Python 2.7, and 3.6+.
+3. The pull request should work for Python 3.7+.
    Check `GitHub Actions`_
    and make sure that the tests pass for all supported Python versions.
 

README.rst

@@ -48,6 +48,11 @@ Miscellaneous
 * Source code: https://github.com/scikit-build/ninja-python-distributions
 * Mailing list: https://groups.google.com/forum/#!forum/scikit-build
 
+Python Version Support
+----------------------
+
+Versions after 1.11.1 no longer support Python 2-3.6, and require manylinux2010+ on linux.
+
 License
 -------
 

noxfile.py

@@ -1,10 +1,13 @@
-# -*- coding: utf-8 -*-
+from __future__ import annotations
+
 import argparse
 import sys
 from pathlib import Path
 
 import nox
 
+nox.needs_version = ">=2024.4.15"
+nox.options.default_venv_backend = "uv|virtualenv"
 nox.options.sessions = ["lint", "build", "tests"]
 
 if sys.platform.startswith("darwin"):
@@ -25,7 +28,7 @@ def build(session: nox.Session) -> str:
     """
     Make an SDist and a wheel. Only runs once.
     """
-    global built
+    global built # noqa: PLW0603
     if not built:
         session.log(
             "The files produced locally by this job are not intended to be redistributable"
@@ -48,7 +51,7 @@ def lint(session: nox.Session) -> str:
     Run linters on the codebase.
     """
     session.install("pre-commit")
-    session.run("pre-commit", "run", "-a")
+    session.run("pre-commit", "run", "-a", *session.posargs)
 
 
 @nox.session
@@ -92,7 +95,8 @@ def bump(session: nox.Session) -> None:
     else:
         version = args.version
 
-    session.install("requests")
+    deps = nox.project.load_toml("scripts/update_ninja_version.py")["dependencies"]
+    session.install(*deps)
 
     extra = ["--quiet"] if args.commit else []
     session.run("python", "scripts/update_ninja_version.py", "--upstream-repository", args.upstream_repository, version, *extra)

pyproject.toml

@@ -31,13 +31,14 @@ classifiers = [
     "Topic :: Software Development :: Build Tools",
     "Typing :: Typed",
 ]
+requires-python = ">=3.7"
 
 [project.optional-dependencies]
 test = [
     "coverage>=4.2",
     "importlib_metadata>=2.0",
-    "pytest-cov>=2.7.1",
-    "pytest>=4.5.0",
+    "pytest-cov>=3",
+    "pytest>=6.0",
 ]
 
 [project.urls]
@@ -51,7 +52,7 @@ Homepage = "http://ninja-build.org/"
 [tool.scikit-build]
 minimum-version = "0.9"
 build-dir = "build/{wheel_tag}"
-wheel.py-api = "py2.py3"
+wheel.py-api = "py3"
 wheel.expand-macos-universal-tags = true
 metadata.version.provider = "scikit_build_core.metadata.setuptools_scm"
 metadata.readme.provider = "scikit_build_core.metadata.fancy_pypi_readme"
@@ -101,41 +102,58 @@ MACOSX_DEPLOYMENT_TARGET = "10.9"
 select = "*-musllinux_*"
 environment = { LDFLAGS = "-static-libstdc++ -static-libgcc" }
 
+
+[tool.pytest.ini_options]
+minversion = "6.0"
+addopts = ["-ra", "--strict-markers", "--strict-config"]
+xfail_strict = true
+filterwarnings = ["error"]
+log_cli_level = "info"
+testpaths = [ "tests" ]
+
+
+[tool.mypy]
+warn_unused_configs = true
+files = "src"
+python_version = "3.8"
+strict = true
+enable_error_code = ["ignore-without-code", "truthy-bool", "redundant-expr"]
+warn_unreachable = true
+
+
 [tool.ruff]
 src = ["src"]
 
 [tool.ruff.lint]
 extend-select = [
-  "B",           # flake8-bugbear
-  "I",           # isort
   "ARG",         # flake8-unused-arguments
+  "B",           # flake8-bugbear
   "C4",          # flake8-comprehensions
+  "EXE",         # flake8-executable
+  "G",           # flake8-logging-format
+  "I",           # isort
   "ICN",         # flake8-import-conventions
   "ISC",         # flake8-implicit-str-concat
-  "G",           # flake8-logging-format
+  "NPY",         # NumPy specific rules
+  "PD",          # pandas-vet
   "PGH",         # pygrep-hooks
   "PIE",         # flake8-pie
   "PL",          # pylint
   "PT",          # flake8-pytest-style
   "RET",         # flake8-return
   "RUF",         # Ruff-specific
   "SIM",         # flake8-simplify
-  "EXE",         # flake8-executable
-  "NPY",         # NumPy specific rules
-  "PD",          # pandas-vet
+  "UP",          # pyupgrade
 ]
 ignore = [
   "PLR",    # Design related pylint codes
   "E501",   # Line too long
-  "RUF005", # Python 3 needed
-  "B904",   # Python 3 needed
-#  "SIM105", # Python 3 needed
 ]
+isort.required-imports = ["from __future__ import annotations"]
 flake8-unused-arguments.ignore-variadic-names = true
 
 [tool.ruff.lint.per-file-ignores]
 "*.pyi" = ["ARG001"]
-"noxfile.py" = ["PLW0603"] # Could be fixed if Python 2 dropped
 
 [tool.pytest.ini_config]
 testpaths = ["tests"]

scripts/repair_wheel.py

@@ -1,4 +1,5 @@
-# -*- coding: utf-8 -*-
+from __future__ import annotations
+
 import argparse
 import re
 import shutil

scripts/update_ninja_version.py

@@ -1,8 +1,12 @@
-# -*- coding: utf-8 -*-
+# /// script
+# dependencies = ["requests"]
+# ///
+
 """
 Command line executable allowing to update NinjaUrls.cmake, documentation
 and tests given a Ninja version.
 """
+from __future__ import annotations
 
 import argparse
 import contextlib
@@ -12,13 +16,7 @@
 import tempfile
 import textwrap
 
-try:
-    from requests import request
-except ImportError:
-    raise SystemExit(
-        "requests not available: "
-        "consider installing it running 'pip install requests'"
-    )
+from requests import request
 
 ROOT_DIR = os.path.join(os.path.dirname(__file__), "..")
 
@@ -31,7 +29,7 @@ def _log(txt, verbose=True):
         print(txt)
     yield
     if verbose:
-        print("%s - done" % txt)
+        print(f"{txt} - done")
 
 
 def _download_file(download_url, filename):
@@ -67,7 +65,7 @@ def _hash_sum(filepath, algorithm="sha256", block_size=2 ** 20):
 
 def _download_and_compute_sha256(url, filename):
     filepath = os.path.join(tempfile.gettempdir(), filename)
-    with _log("Downloading %s" % url):
+    with _log(f"Downloading {url}"):
         _download_file(url, filepath)
         sha256 = _hash_sum(filepath, algorithm="sha256")
     return url, sha256
@@ -77,7 +75,7 @@ def get_ninja_archive_urls_and_sha256s(upstream_repository, version, verbose=Fal
     tag_name = f"v{version}"
     files_base_url = f"https://github.com/{upstream_repository}/archive/{tag_name}"
 
-    with _log("Collecting URLs and SHA256s from '%s'" % files_base_url):
+    with _log(f"Collecting URLs and SHA256s from '{files_base_url}'"):
 
         # Get SHA256s and URLs
         urls = {
@@ -87,7 +85,7 @@ def get_ninja_archive_urls_and_sha256s(upstream_repository, version, verbose=Fal
 
         if verbose:
             for identifier, (url, sha256) in urls.items():
-                print("[{}]\n{}\n{}\n".format(identifier, url, sha256))
+                print(f"[{identifier}]\n{url}\n{sha256}\n")
 
         return urls
 
@@ -97,8 +95,8 @@ def generate_cmake_variables(urls_and_sha256s):
 
     # Get SHA256s and URLs
     for var_prefix, urls_and_sha256s_values in urls_and_sha256s.items():
-        template_inputs["%s_url" % var_prefix] = urls_and_sha256s_values[0]
-        template_inputs["%s_sha256" % var_prefix] = urls_and_sha256s_values[1]
+        template_inputs[f"{var_prefix}_url"] = urls_and_sha256s_values[0]
+        template_inputs[f"{var_prefix}_sha256"] = urls_and_sha256s_values[1]
 
     return textwrap.dedent(
         """
@@ -118,16 +116,16 @@ def update_cmake_urls_script(upstream_repository, version):
     cmake_urls_filename = "NinjaUrls.cmake"
     cmake_urls_filepath = os.path.join(ROOT_DIR, cmake_urls_filename)
 
-    msg = "Updating '{}' with Ninja version {}".format(cmake_urls_filename, version)
+    msg = f"Updating '{cmake_urls_filename}' with Ninja version {version}"
     with _log(msg), open(cmake_urls_filepath, "w") as cmake_file:
         cmake_file.write(content)
 
 
 def _update_file(filepath, regex, replacement, verbose=True):
-    msg = "Updating %s" % os.path.relpath(filepath, ROOT_DIR)
+    msg = f"Updating {os.path.relpath(filepath, ROOT_DIR)}"
     with _log(msg, verbose=verbose):
         pattern = re.compile(regex)
-        with open(filepath, "r") as doc_file:
+        with open(filepath) as doc_file:
             lines = doc_file.readlines()
             updated_content = []
             for line in lines:
@@ -138,7 +136,7 @@ def _update_file(filepath, regex, replacement, verbose=True):
 
 def update_docs(upstream_repository, version):
     pattern = re.compile(r"ninja \d+.\d+.\d+(\.[\w\-]+)*")
-    replacement = "ninja %s" % version
+    replacement = f"ninja {version}"
     _update_file(
         os.path.join(ROOT_DIR, "README.rst"),
         pattern, replacement)
@@ -171,7 +169,7 @@ def update_tests(version):
         version = ".".join(parts)
 
     pattern = re.compile(r'expected_version = "\d+.\d+.\d+(\.[\w\-]+)*"')
-    replacement = 'expected_version = "%s"' % version
+    replacement = f'expected_version = "{version}"'
     _update_file(os.path.join(
         ROOT_DIR, "tests/test_ninja.py"), pattern, replacement)
 

src/ninja/__init__.py

@@ -1,20 +1,23 @@
-# -*- coding: utf-8 -*-
+from __future__ import annotations
+
 import os
 import subprocess
 import sys
 import sysconfig
+from collections.abc import Iterable
+from typing import NoReturn
 
 from ._version import version as __version__
 from .ninja_syntax import Writer, escape, expand
 
 __all__ = ["__version__", "DATA", "BIN_DIR", "ninja", "Writer", "escape", "expand"]
 
 
-def __dir__():
+def __dir__() -> list[str]:
     return __all__
 
 
-def _get_ninja_dir():
+def _get_ninja_dir() -> str:
     ninja_exe = "ninja" + sysconfig.get_config_var("EXE")
 
     # Default path
@@ -27,7 +30,7 @@ def _get_ninja_dir():
         user_scheme = sysconfig.get_preferred_scheme("user")
     elif os.name == "nt":
         user_scheme = "nt_user"
-    elif sys.platform.startswith("darwin") and sys._framework:
+    elif sys.platform.startswith("darwin") and getattr(sys, "_framework", None):
         user_scheme = "osx_framework_user"
     else:
         user_scheme = "posix_user"
@@ -47,10 +50,11 @@ def _get_ninja_dir():
 
 BIN_DIR = _get_ninja_dir()
 
-def _program(name, args):
+
+def _program(name: str, args: Iterable[str]) -> int:
     cmd = os.path.join(BIN_DIR, name)
-    return subprocess.call([cmd] + args, close_fds=False)
+    return subprocess.call([cmd, *args], close_fds=False)
 
 
-def ninja():
+def ninja() -> NoReturn:
     raise SystemExit(_program('ninja', sys.argv[1:]))