One version source

Author: iparsw

CMakeLists.txt

@@ -1,6 +1,9 @@
 cmake_minimum_required(VERSION 3.15)
 
-project(differintC VERSION 0.0.2.3 LANGUAGES CXX)
+file(READ "${PROJECT_VERSION_FILE}" VERSION_CONTENTS)
+string(REGEX MATCH "__version__ *= *[\"']([^\"']+)[\"']" _ ${VERSION_CONTENTS})
+set(PYTHON_VERSION_STRING "${CMAKE_MATCH_1}")
+project(differintC VERSION ${PYTHON_VERSION_STRING} LANGUAGES CXX)
 
 # Set compiler optimization flags
 if(MSVC)

differintC/__init__.py

@@ -77,4 +77,4 @@ def _load_dll():
 from ._differintC import *  # type: ignore # Directly import from site-packages
 
 # Add version attribute
-__version__ = "0.0.2.3"
+from ._version import __version__

differintC/_version.py

@@ -0,0 +1 @@
+__version__ = "0.0.2.3"  # <-- ANY PEP 440 version string allowed

pyproject.toml

@@ -10,7 +10,7 @@ build-backend = "scikit_build_core.build"
 
 [project]
 name = "differintC"
-version = "0.0.2.3"
+dynamic = ["version"]
 description = "Fast C++ implementation of fractional calculus operators via pybind11"
 authors = [{ name = "Parsa Roshanak" }]
 license = { text = "GPL-3.0-or-later" }  # Changed to GPL for compatibility with fftw
@@ -37,6 +37,12 @@ Homepage = "https://github.com/iparsw/differintC"
 Repository = "https://github.com/iparsw/differintC"
 Issues = "https://github.com/iparsw/differintC/issues"
 
+[tool.scikit-build.metadata.version]
+provider = "scikit_build_core.metadata.regex"
+input = "differintC/_version.py"
+regex = "^__version__\\s*=\\s*['\"](?P<value>[^'\"]+)['\"]"
+
+
 [tool.scikit-build]
 wheel.packages = ["differintC"]
 build-dir = "build"
@@ -79,6 +85,7 @@ exclude = [
 [tool.scikit-build.cmake]
 args = [
     "-DFFTW_ROOT=thirdparty/fftw",
-    "-DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreadedDLL"
+    "-DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreadedDLL",
+    "-DPROJECT_VERSION_FILE=differintC/_version.py",
 ]