build: migrate from setup.py to pyproject.toml

pyproject.toml

@@ -0,0 +1,80 @@
+[build-system]
+requires = ["setuptools>=61.0", "wheel", "setuptools-scm"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "jupyter-repo2docker"
+dynamic = ["version"]
+description = "Repo2docker: Turn code repositories into Jupyter enabled Docker Images"
+readme = "README.md"
+license = {text = "BSD"}
+authors = [
+    {name = "Project Jupyter Contributors", email = "[email protected]"}
+]
+maintainers = [
+    {name = "Project Jupyter Contributors", email = "[email protected]"}
+]
+keywords = ["reproducible", "science", "environments", "docker"]
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "Environment :: Console",
+    "Intended Audience :: Developers",
+    "Intended Audience :: System Administrators",
+    "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: BSD License",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Topic :: Scientific/Engineering",
+    "Topic :: Software Development",
+    "Topic :: System :: Systems Administration",
+]
+requires-python = ">=3.9"
+dependencies = [
+    "chardet",
+    "docker!=5.0.0",
+    "entrypoints",
+    "escapism",
+    "iso8601",
+    "jinja2",
+    "python-json-logger",
+    "requests",
+    "ruamel.yaml>=0.15",
+    "semver",
+    "toml",
+    "traitlets",
+]
+
+[project.urls]
+Homepage = "https://repo2docker.readthedocs.io/en/latest/"
+Documentation = "https://repo2docker.readthedocs.io"
+Funding = "https://jupyter.org/about"
+Source = "https://github.com/jupyterhub/repo2docker/"
+Tracker = "https://github.com/jupyterhub/repo2docker/issues"
+
+[project.scripts]
+jupyter-repo2docker = "repo2docker.__main__:main"
+repo2docker = "repo2docker.__main__:main"
+
+[project.entry-points."repo2docker.engines"]
+docker = "repo2docker.docker:DockerEngine"
+
+[tool.setuptools]
+include-package-data = true
+
+[tool.setuptools.packages.find]
+where = ["."]
+
+
+[tool.wheel]
+universal = 1
+
+
+[tool.setuptools_scm]
+# 这个配置会让 setuptools-scm 自动创建一个 my_awesome_project/_version.py 文件，
+# 并在里面写入版本号。这样你的项目代码在运行时可以通过 my_awesome_project._version
+# 来获取自身的版本。
+write_to = "repo2docker/_version.py"

repo2docker/__init__.py

@@ -1,9 +1,5 @@
-from ._version import get_versions
-
-__version__ = get_versions()["version"]
-del get_versions
-
-from . import _version
+from ._version import __version__
 from .app import Repo2Docker
 
-__version__ = _version.get_versions()["version"]
+# You can add this if you want an __all__ variable to control imports
+__all__ = ["__version__", "Repo2Docker"]

test_setuptools.py

@@ -0,0 +1,18 @@
+import tomllib
+
+from setuptools.config.pyprojecttoml import read_configuration
+
+if __name__ == "__main__":
+    try:
+        with open("pyproject.toml", "rb") as f:
+            tomllib.load(f)
+        print("✅ TOML语法正确")
+    except Exception as e:
+        print(f"❌ TOML语法错误: {e}")
+
+    try:
+        config = read_configuration("pyproject.toml")
+        print("✅ 配置文件语法正确")
+        print("项目名称:", config.get("name"))
+    except Exception as e:
+        print("❌ 配置错误:", e)