Convert setup.py and setup.cfg into a pyproject.toml

RELEASING.txt

@@ -19,18 +19,18 @@ Prepare new release branch
 
 - Create a new release branch, incrementing the version number.
 
-- Align the release number with deformdemo (setup.py, README.rst, CHANGES.txt).
+- Align the release number with deformdemo (pyproject.toml, README.rst, CHANGES.txt).
 
 - Do any necessary branch merges (e.g., main to branch, branch to main).
 
 - On release branch:
 
     git pull
 
-- Make sure your Python has ``setuptools-git``, ``twine``, and ``wheel``
+- Make sure your Python has ``twine`` and ``wheel``
   installed:
 
-    $VENV/bin/pip install setuptools-git twine wheel
+    $VENV/bin/pip install twine wheel
 
 - Do a platform test, run a check with black, ensure the PyPI long description
   renders, and run check-manifest with the following command.
@@ -52,7 +52,7 @@ Prepare new release branch
   branch, and previously released branch. Also in the previously released
   branch only, uncomment the sections to enable pylons_sphinx_latesturl.
 
-- Change setup.py version to the release version number.
+- Change pyproject.toml version to the release version number.
 
 - Build an sdist and a wheel:
 

deform/exception.py

@@ -25,7 +25,7 @@ class ValidationFailure(Exception):
     """
 
     def __init__(self, field, cstruct, error):
-        Exception.__init__(self)
+        super().__init__(field, cstruct, error)
         self.field = field
         self.cstruct = cstruct
         self.error = error

deform/template.py

@@ -2,9 +2,9 @@
 
 # Standard Library
 import os.path
+import importlib.resources as resources
 
 from chameleon.zpt.loader import TemplateLoader
-from pkg_resources import resource_filename
 from translationstring import ChameleonTranslate
 
 from .exception import TemplateError
@@ -40,7 +40,15 @@ def __init__(self, *args, **kwargs):
     def load(self, filename, *args, **kwargs):
         if ":" in filename:
             pkg_name, fn = filename.split(":", 1)
-            filename = resource_filename(pkg_name, fn)
+            resource = resources.files(pkg_name).joinpath(fn)
+            try:
+                with resources.as_file(resource) as resolved:
+                    filename = os.fspath(resolved)
+                    return super(ZPTTemplateLoader, self).load(
+                        filename, *args, **kwargs
+                    )
+            except ValueError:
+                raise TemplateError(filename)
         else:
             path, ext = os.path.splitext(filename)
             if not ext:
@@ -123,5 +131,5 @@ def load(self, template_name):
         return self.loader.load(template_name)
 
 
-default_dir = resource_filename("deform", "templates/")
+default_dir = os.fspath(resources.files("deform").joinpath("templates"))
 default_renderer = ZPTRendererFactory((default_dir,))

pyproject.toml

@@ -1,5 +1,132 @@
 [build-system]
-requires = ["setuptools", "wheel"]
+requires = ["setuptools>=61", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "deform"
+version = "3.0.0.dev0"
+description = "Form library with advanced features like nested forms"
+readme = "README.rst"
+requires-python = ">=3.10"
+license = {text = "BSD-derived"}
+authors = [
+    {name = "Chris McDonough, Agendaless Consulting", email = "pylons-discuss@googlegroups.com"},
+]
+maintainers = [
+    {name = "Josip Delić", email = "delijati@gmx.net"},
+    {name = "Stéphane Brunner", email = "stephane.brunner@gmail.com"},
+]
+keywords = ["web", "forms", "form", "generation", "schema", "validation", "pyramid"]
+classifiers = [
+    "Intended Audience :: Developers",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: Implementation :: CPython",
+    "Programming Language :: Python :: Implementation :: PyPy",
+]
+dependencies = [
+    "Chameleon>=2.5.1",
+    "colander>=1.0",
+    "iso8601",
+    "peppercorn>=0.3",
+    "translationstring>=1.0",
+    "zope.deprecation",
+]
+
+[project.optional-dependencies]
+lint = [
+    "black",
+    "check-manifest",
+    "flake8",
+    "flake8-bugbear",
+    "flake8-builtins",
+    "isort",
+    "rstcheck",
+    "readme_renderer",
+]
+testing = [
+    "beautifulsoup4",
+    "coverage",
+    "flaky",
+    "pyramid",
+    "pytest",
+    "pytest-cov",
+]
+functional = [
+    "pygments",
+    "waitress",
+    "lingua",
+    "selenium>=4.0.0.b4,<4.10.0",
+]
+docs = [
+    "Sphinx>=1.7.4",
+    "repoze.sphinx.autointerface",
+    "pylons_sphinx_latesturl",
+    "pylons-sphinx-themes",
+]
+dev = [
+    "black",
+    "check-manifest",
+    "flake8",
+    "flake8-bugbear",
+    "flake8-builtins",
+    "isort",
+    "rstcheck",
+    "readme_renderer",
+    "beautifulsoup4",
+    "coverage",
+    "flaky",
+    "pyramid",
+    "pytest",
+    "pytest-cov",
+    "pygments",
+    "waitress",
+    "lingua",
+    "selenium>=4.0.0.b4,<4.10.0",
+    "Sphinx>=1.7.4",
+    "repoze.sphinx.autointerface",
+    "pylons_sphinx_latesturl",
+    "pylons-sphinx-themes",
+]
+
+[project.urls]
+Homepage = "https://docs.pylonsproject.org/projects/deform/en/latest/"
+Documentation = "https://docs.pylonsproject.org/projects/deform/en/3.0-branch/"
+Changelog = "https://docs.pylonsproject.org/projects/deform/en/3.0-branch/changes.html"
+"Issue Tracker" = "https://github.com/Pylons/deform/issues"
+
+[tool.pytest.ini_options]
+python_files = ["test_*.py"]
+testpaths = ["deform/tests"]
+addopts = "-W always"
+
+[tool.check-manifest]
+ignore-bad-ideas = ["*.mo"]
+
+[tool.babel.compile_catalog]
+directory = "deform/locale"
+domain = "deform"
+statistics = true
+
+[tool.babel.extract_messages]
+add_comments = "TRANSLATORS:"
+output_file = "deform/locale/deform.pot"
+width = 80
+
+[tool.babel.init_catalog]
+domain = "deform"
+input_file = "deform/locale/deform.pot"
+output_dir = "deform/locale"
+
+[tool.babel.update_catalog]
+domain = "deform"
+input_file = "deform/locale/deform.pot"
+output_dir = "deform/locale"
+previous = true
 
 [tool.black]
 line-length = 79