move build configuration into pyproject.toml

.flake8

@@ -0,0 +1,25 @@
+# flake8 does not support pyproject.toml (https://github.com/PyCQA/flake8/issues/234)
+
+[flake8]
+select = F, W, E, C
+# We should set max line length lower eventually
+max-line-length = 130
+exclude =
+    jwst/extern,
+    docs,
+    jwst/associations,
+    jwst/fits_generator,
+    .tox,
+    .eggs,
+    build
+per-file-ignores =
+    jwst/ramp_fitting/tests/compare_cr_navg_files.py:E
+    jwst/ramp_fitting/tests/compare_crs.py:E
+    jwst/ramp_fitting/tests/compare_cr_files.py:E
+    jwst/ramp_fitting/tests/create_cube.py:E
+    jwst/ramp_fitting/tests/mc_3d.py:E
+ignore = E231,E241,W503,W504
+;    E231, # Missing whitespace after ',', ';', or ':'
+;    E241, # Multiple spaces after ','
+;    W503, # Line break occurred before a binary operator
+;    W504, # Line break occurred after a binary operator

CHANGES.rst

@@ -58,6 +58,8 @@ outlier_detection
 
 - Replace uses of ``datetime.utcnow`` (deprecated in python 3.12) [#8051]
 
+- Moved build configuration from ``setup.cfg`` to ``pyproject.toml`` to support PEP621 [#6847]
+
 imprint
 -------
 
@@ -812,7 +814,6 @@ resample_spec
 - Update ``resample_spec`` to be skipped for NIRSpec fixed slit MultiSlitModel
   rateints input, because that mode is not allowed. [#7516]
 
-
 1.10.0 (2023-04-03)
 ===================
 

CONTRIBUTING.md

@@ -219,7 +219,7 @@ successfully  (i.e, produces a working .html file). This happens on the CI when
 open a pull request, but it is a good idea to build the documentation yourself locally
 as well. Before you do this, you will need to make sure you have the correct dependencies
 installed in your current environment. All of these optional dependencies are specified
-in `setup.cfg` and include things like the correct version of sphinx, as well as the
+in `pyproject.toml` and include things like the correct version of sphinx, as well as the
 necessary sphinx themes that the project uses. These do not install automatically
 when you install `jwst` unless directly specified. To do this, while in the top level
 directory of `jwst` on your my_feature branch:
@@ -266,7 +266,7 @@ for running tests.
 
 	>> pip install -e ".[test]"
 
-This will install the optional 'test' dependencies specified in `setup.cfg` that
+This will install the optional 'test' dependencies specified in `pyproject.toml` that
 don't install by default. The package `pytest` is one of these and is what's used
 to run the tests. `pytest` searches through all the directories in your repository
 (underneath the directory from which it was invoked command line) and looks for any
@@ -324,14 +324,14 @@ in your environment, you can check their versions by doing:
 
 	>> conda list
 When opening up two dependent pull requests in `jwst` and one of its dependency packages,
-unit tests will not pass on the CI because the setup.cfg file in `jwst` points to the
+unit tests will not pass on the CI because the `pyproject.toml` file in `jwst` points to the
 last released version of `stcal`, and stcal points to the last version of `jwst`, so the
-issue becomes circular. What you will need to do is modify the setup.cfg files in both
+issue becomes circular. What you will need to do is modify the `pyproject.toml` files in both
 packages to point to the other to demonstrate that CI tests pass (and make a comment
 noting this in your PR), and then change it back before the PR is merge so that changes
-to setup.cfg are not merged into master/main. In your `jwst` branch, to point to your
+to `pyproject.toml` are not merged into master/main. In your `jwst` branch, to point to your
 branch in the dependent package (in this example `stcal`), change the required `stcal`
-version in setup.cfg to:
+version in `pyproject.toml` to:
 
 	>> stcal @  git+https://github.com/<your_username>/stcal.git@<your_branch>
 

MANIFEST.in

@@ -1,6 +1,5 @@
 include README.md
 include CHANGES.rst
-include setup.cfg
 include LICENSE
 include pyproject.toml
 

docs/conf.py

@@ -15,6 +15,12 @@
 import importlib
 import sys
 import os
+from pathlib import Path
+
+if sys.version_info < (3, 11):
+     import tomli as tomllib
+else:
+     import tomllib
 from packaging.version import Version
 from configparser import ConfigParser
 
@@ -67,9 +73,6 @@ def setup(app):
 sys.path.insert(0, os.path.abspath('exts/'))
 
 # -- General configuration ------------------------------------------------
-conf.read([os.path.join(os.path.dirname(__file__), '..', 'setup.cfg')])
-setup_cfg = dict(conf.items('metadata'))
-
 # If your documentation needs a minimal Sphinx version, state it here.
 # needs_sphinx = '1.3'
 
@@ -160,16 +163,18 @@ def check_sphinx_version(expected_version):
 
 
 # General information about the project
-project = setup_cfg['name']
-author = setup_cfg['author']
-copyright = '{0}, {1}'.format(datetime.datetime.now().year, author)
+with open(Path(__file__).parent.parent / "pyproject.toml", "rb") as metadata_file:
+    metadata = tomllib.load(metadata_file)['project']
+project = metadata['name']
+author = metadata["authors"][0]["name"]
+copyright = f'{datetime.datetime.today().year}, {author}'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
 # built documents.
 #
 # The short X.Y version.
-package = importlib.import_module(setup_cfg['name'])
+package = importlib.import_module(metadata['name'])
 try:
     version = package.__version__.split('-', 1)[0]
     # The full version, including alpha/beta/rc tags.

docs/jwst/user_documentation/introduction.rst

@@ -108,9 +108,9 @@ There is also a `pipeline` module, where the `pipeline` classes, consisting of
 
 **Dependencies** 
 
-The `jwst` package has several dependencies (see the `setup.cfg` file in the
-top-level directory of `jwst` for a full list). Some notable dependencies
-include:
+The `jwst` package has several dependencies (see the `pyproject.toml` file
+in the top-level directory of `jwst` for a full list). Some notable
+dependencies include:
 
 **asdf**
 

jwst/exp_to_source/tests/data/sources/reduce_dataset.ipynb

@@ -188,7 +188,7 @@
      "text": [
       "============================= test session starts ==============================\n",
       "platform linux -- Python 3.6.7, pytest-3.9.1, py-1.7.0, pluggy-0.8.0\n",
-      "rootdir: /internal/1/astropy/jwst, inifile: setup.cfg\n",
+      "rootdir: /internal/1/astropy/jwst, inifile: pyproject.toml\n",
       "plugins: requests-mock-1.5.2, remotedata-0.3.0, openfiles-0.3.0, doctestplus-0.1.3, arraydiff-0.2, ci-watson-0.3\n",
       "\n",
       "========================= no tests ran in 0.00 seconds =========================\n"

jwst/scripts/verify_install_requires.py

@@ -11,7 +11,7 @@ def main():
     This script is used in a Travis build that doesn't install any test
     dependencies from the package. This is to verify that all the modules
     are at least importable with only the dependencies listed in
-    install_requires in setup.py.
+    ``pyproject.toml``.
 
     This is to prevent adding code to the runtime codebase that have
     dependencies that are only pulled in via the test dependencies.  So for