Moved the metadata into machine-readable setup.cfg.

.gitignore

@@ -1,3 +1,5 @@
+trio/_version.py
+
 # Project-specific generated files
 docs/build/
 

ci.sh

@@ -66,11 +66,11 @@ fi
 
 python -c "import sys, struct, ssl; print('#' * 70); print('python:', sys.version); print('version_info:', sys.version_info); print('bits:', struct.calcsize('P') * 8); print('openssl:', ssl.OPENSSL_VERSION, ssl.OPENSSL_VERSION_INFO); print('#' * 70)"
 
-python -m pip install -U pip setuptools wheel
+python -m pip install -U pip setuptools setuptools_scm wheel build
 python -m pip --version
 
-python setup.py sdist --formats=zip
-python -m pip install dist/*.zip
+python -m build -nsx .
+python -m pip install dist/*.tar.gz
 
 if [ "$CHECK_FORMATTING" = "1" ]; then
     python -m pip install -r test-requirements.txt

docs-requirements.in

@@ -6,6 +6,7 @@ jinja2 < 3.1
 sphinx_rtd_theme
 sphinxcontrib-trio
 towncrier
+setuptools-scm
 
 # Trio's own dependencies
 cffi; os_name == "nt"

docs-requirements.txt

@@ -59,6 +59,8 @@ pytz==2022.4
     # via babel
 requests==2.28.1
     # via sphinx
+setuptools-scm==7.0.5 
+    # via setuptools-scm
 sniffio==1.3.0
     # via -r docs-requirements.in
 snowballstemmer==2.2.0

newsfragments/2448.feature.rst

@@ -0,0 +1 @@
+Moved the metadata into ``setup.cfg``, that allows automatic parsing of it.

pyproject.toml

@@ -1,3 +1,11 @@
+[build-system]
+requires = ["setuptools>=42.2", "setuptools_scm[toml]>=3.4.3"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools_scm]
+write_to = "trio/_version.py"
+write_to_template = "__version__ = \"{version}\"\n"
+
 [tool.black]
 target-version = ['py37']
 

setup.cfg

@@ -0,0 +1,111 @@
+[metadata]
+name = trio
+author = Nathaniel J. Smith
+author_email = njs@pobox.com
+license = MIT OR Apache-2.0
+description = A friendly Python library for async concurrency and I/O
+keywords = async, io, networking, trio
+url = https://github.com/python-trio/trio
+long_description = .. image:: https://raw.githubusercontent.com/python-trio/trio/9b0bec646a31e0d0f67b8b6ecc6939726faf3e17/logo/logo-with-background.svg
+       :width: 200px
+       :align: right
+
+    The Trio project's goal is to produce a production-quality, `permissively
+    licensed <https://github.com/python-trio/trio/blob/master/LICENSE>`__,
+    async/await-native I/O library for Python. Like all async libraries,
+    its main purpose is to help you write programs that do **multiple
+    things at the same time** with **parallelized I/O**. A web spider that
+    wants to fetch lots of pages in parallel, a web server that needs to
+    juggle lots of downloads and websocket connections at the same time, a
+    process supervisor monitoring multiple subprocesses... that sort of
+    thing. Compared to other libraries, Trio attempts to distinguish
+    itself with an obsessive focus on **usability** and
+    **correctness**. Concurrency is complicated; we try to make it *easy*
+    to get things *right*.
+
+    Trio was built from the ground up to take advantage of the `latest
+    Python features <https://www.python.org/dev/peps/pep-0492/>`__, and
+    draws inspiration from `many sources
+    <https://github.com/python-trio/trio/wiki/Reading-list>`__, in
+    particular Dave Beazley's `Curio <https://curio.readthedocs.io/>`__.
+    The resulting design is radically simpler than older competitors like
+    `asyncio <https://docs.python.org/3/library/asyncio.html>`__ and
+    `Twisted <https://twistedmatrix.com/>`__, yet just as capable. Trio is
+    the Python I/O library I always wanted; I find it makes building
+    I/O-oriented programs easier, less error-prone, and just plain more
+    fun. `Perhaps you'll find the same
+    <https://github.com/python-trio/trio/wiki/Testimonials>`__.
+
+    This project is young and still somewhat experimental: the overall
+    design is solid and the existing features are fully tested and
+    documented, but you may encounter missing functionality or rough
+    edges. We *do* encourage you do use it, but you should `read and
+    subscribe to issue #1
+    <https://github.com/python-trio/trio/issues/1>`__ to get warning and a
+    chance to give feedback about any compatibility-breaking changes.
+
+    Vital statistics:
+
+    * Supported environments: Linux, macOS, or Windows running some kind of Python
+      3.7-or-better (either CPython or PyPy3 is fine). \*BSD and illumos likely
+      work too, but are not tested.
+
+    * Install: ``python3 -m pip install -U trio`` (or on Windows, maybe
+      ``py -3 -m pip install -U trio``). No compiler needed.
+
+    * Tutorial and reference manual: https://trio.readthedocs.io
+
+    * Bug tracker and source code: https://github.com/python-trio/trio
+
+    * Real-time chat: https://gitter.im/python-trio/general
+
+    * Discussion forum: https://trio.discourse.group
+
+    * License: MIT or Apache 2, your choice
+
+    * Contributor guide: https://trio.readthedocs.io/en/latest/contributing.html
+
+    * Code of conduct: Contributors are requested to follow our `code of
+      conduct
+      <https://trio.readthedocs.io/en/latest/code-of-conduct.html>`_
+      in all project spaces.
+
+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
+
+[options]
+packages = find:
+install_requires =
+    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'
+setup_requires = 
+    setuptools>=42.2
+    setuptools_scm[toml]>=3.4.3
+include_package_data = True
+python_requires = >=3.7