Moved the metadata from setup.cfg into PEP 621-compliant pyproject.toml.

Author: KOLANICH

newsfragments/2449.feature.rst

@@ -0,0 +1 @@
+Moved the metadata into ``PEP 621``-compliant ``pyproject.toml``.

pyproject.toml

@@ -1,7 +1,57 @@
 [build-system]
-requires = ["setuptools>=42.2", "setuptools_scm[toml]>=3.4.3"]
+requires = ["setuptools>=61.2", "setuptools_scm[toml]>=3.4.3"]
 build-backend = "setuptools.build_meta"
 
+[project]
+name = "trio"
+authors = [{name = "Nathaniel J. Smith", email = "[email protected]"}]
+license = {text = "MIT OR Apache-2.0"}
+description = "A friendly Python library for async concurrency and I/O"
+readme = "README.rst"
+keywords = ["async", "io", "networking", "trio"]
+classifiers = [
+    "Development Status :: 3 - Alpha",
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: MIT License",
+    "License :: OSI Approved :: Apache Software License",
+    "Operating System :: POSIX :: Linux",
+    "Operating System :: MacOS :: MacOS X",
+    "Operating System :: POSIX :: BSD",
+    "Operating System :: Microsoft :: Windows",
+    "Programming Language :: Python :: Implementation :: CPython",
+    "Programming Language :: Python :: Implementation :: PyPy",
+    "Programming Language :: Python :: 3 :: Only",
+    "Programming Language :: Python :: 3.7",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Topic :: System :: Networking",
+    "Framework :: Trio",
+]
+urls = {Homepage = "https://github.com/python-trio/trio"}
+requires-python = ">=3.7"
+dependencies = [
+    "attrs >= 19.2.0",
+    "sortedcontainers",
+    "async_generator >= 1.9",
+    "idna",
+    "outcome",
+    "sniffio",
+    # cffi 1.12 adds from_buffer(require_writable=True) and ffi.release()
+    # cffi 1.14 fixes memory leak inside ffi.getwinerror()
+    # cffi is required on Windows, except on PyPy where it is built-in
+    "cffi>=1.14; os_name == 'nt' and implementation_name != 'pypy'",
+    "exceptiongroup >= 1.0.0rc9; python_version < '3.11'",
+]
+dynamic = ["version"]
+
+[tool.setuptools]
+include-package-data = true
+
+[tool.setuptools.packages]
+find = {namespaces = false}
+
 [tool.setuptools_scm]
 write_to = "trio/_version.py"
 write_to_template = "__version__ = \"{version}\"\n"