v0.3.4, setup.py to pyproject.toml for build

README.rst

@@ -175,6 +175,7 @@ Version History
 ======= ============ ===========================================================
 Version Release date Changes
 ------- ------------ -----------------------------------------------------------
+v0.3.4  2022-11-17   - Replaces ``setup.py`` with ``pyproject.toml`` for build.
 v0.3.3  2022-05-16   - Cope with line-length as string in pyproject.toml config.
 v0.3.2  2022-02-25   - Use ``tomli`` library to match black, contribution from
                        `Brian Helba <https://github.com/brianhelba>`_.
@@ -223,10 +224,15 @@ Developers
 
 This plugin is on GitHub at https://github.com/peterjc/flake8-black
 
+Developers may install the plugin from the git repository with optional build
+dependencies::
+
+    $ pip install -e .[develop]
+
 To make a new release once tested locally and online::
 
     $ git tag vX.Y.Z
-    $ python setup.py sdist --formats=gztar && python setup.py bdist_wheel
+    $ python -m build
     $ git push origin master --tags
     $ twine upload dist/flake8?black-X.Y.Z*
 

flake8_black.py

@@ -14,7 +14,7 @@
 from flake8 import LOG
 
 
-__version__ = "0.3.3"
+__version__ = "0.3.4"
 
 black_prefix = "BLK"
 
@@ -223,7 +223,7 @@ def run(self):
             except BadBlackConfig as err:
                 msg = "997 Invalid TOML file: %s" % err
             except Exception as err:
-                msg = "999 Unexpected exception: %s" % err
+                msg = "999 Unexpected exception: %r" % err
             else:
                 assert (
                     new_code != source

pyproject.toml

@@ -0,0 +1,49 @@
+[build-system]
+requires = ['pip>=21.3', 'setuptools>=61', 'wheel']
+build-backend = 'setuptools.build_meta'
+
+[project]
+name = 'flake8-black'
+description = 'flake8 plugin to call black as a code style validator'
+keywords = ['black', 'formatting', 'style', 'flake8']
+license = {text = 'MIT'}
+readme = 'README.rst'
+authors = [
+  {name = 'Peter J. A. Cock'}
+]
+maintainers = [
+  {name = 'Peter J. A. Cock', email = 'p.j.a.cock@googlemail.com'}
+]
+classifiers = [
+  'Intended Audience :: Developers',
+  'Framework :: Flake8',
+  'License :: OSI Approved :: MIT License',
+  'Operating System :: OS Independent',
+  'Topic :: Software Development :: Libraries :: Python Modules',
+  'Topic :: Software Development :: Quality Assurance',
+  'Programming Language :: Python',
+  'Programming Language :: Python :: 3',
+  'Programming Language :: Python :: 3 :: Only'
+]
+requires-python = '>=3.7'
+dependencies = [
+  'flake8>=3',
+  'black>=22.1.0',
+  'tomli',
+]
+dynamic = ['version']
+[project.entry-points]
+'flake8.extension' = {RST = 'flake8_black:BlackStyleChecker'}
+[project.optional-dependencies]
+develop = ['build', 'twine']
+[project.urls]
+Homepage = 'https://github.com/peterjc/flake8-black'
+'Source Code' = 'https://github.com/peterjc/flake8-black/'
+'Bug Tracker' = 'https://github.com/peterjc/flake8-black/issues'
+Documentation = 'https://github.com/peterjc/flake8-black/blob/master/README.rst'
+
+[tool.setuptools]
+py-modules = ['flake8_black']
+zip-safe = true
+[tool.setuptools.dynamic]
+version = {attr = 'flake8_black.__version__'}