fix: 🐞 dynamic version system for older python and setuptools

Signed-off-by: Onuralp SEZER <thunderbirdtr@gmail.com>

pyacl/__init__.py

@@ -8,10 +8,4 @@ An English copy of the Licence is shipped in a file called LICENSE along with th
 You may obtain copies of the Licence in any of the official languages at https://joinup.ec.europa.eu/collection/eupl/eupl-text-eupl-12.
 """
 
-import importlib.metadata as importlib_metadata
-
-try:
-    # This will read version from pyproject.toml
-    __version__ = importlib_metadata.version(__package__ or __name__)
-except importlib_metadata.PackageNotFoundError:
-    __version__ = "development"
+from .__version__ import __version__

pyacl/__version__.py

@@ -0,0 +1 @@
+__version__ = "0.0.1"

pyproject.toml

@@ -1,12 +1,12 @@
 [build-system]
-requires = ["setuptools", "setuptools-scm", "wheel"]
+requires = ["setuptools>=64", "setuptools-scm>=8", "wheel"]
 build-backend = "setuptools.build_meta"
 
+
 [project]
 name = 'pyacl'
 description = 'High level abstractions over pylibacl'
-version = '0.0.1'
-readme = "README.md"
+dynamic = ["version", "readme"]
 authors = [
   { name='Georg Pfuetzenreuter', email='georg+python@lysergic.dev' },
 ]
@@ -44,6 +44,10 @@ dev = [
 [tool.setuptools]
 include-package-data = true # include non-python files in the package (default)
 
+[tool.setuptools.dynamic]
+version = {attr = "pyacl.__version__"}
+readme = {file = ["README.md"]}
+
 [tool.setuptools.packages.find]
 where = ["."]
 exclude = ["scripts", "scripts.*", "docs.*", "tests", "tests.*", "ruff.toml"]