pythonnet · filmor · May 6, 2026 · May 6, 2026
diff --git a/pyproject.toml b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=80"]
+requires = ["setuptools>=80", "packaging>=24", "pyproject-parser>=0.14"]
 build-backend = "setuptools.build_meta"
 
 [project]

diff --git a/setup.py b/setup.py
@@ -3,6 +3,10 @@
 import distutils
 from distutils.command.build import build as _build
 from setuptools.command.develop import develop as _develop
+from setuptools.command.bdist_wheel import bdist_wheel as _bdist_wheel
+from packaging.specifiers import SpecifierSet
+from packaging.version import Version
+from pyproject_parser import PyProject
 from setuptools import Distribution
 from setuptools import setup, Command
 
@@ -16,6 +20,7 @@
 NET46_SUPPORT = NET46_SUPPORT_OPTION in sys.argv
 if NET46_SUPPORT:
     sys.argv.remove(NET46_SUPPORT_OPTION)
+WINDOWS_PLATFORM_TAG = "win32.win_amd64"
 
 
 class DotnetLib:
@@ -111,27 +116,51 @@ def install_for_development(self):
         return super().install_for_development()
 
 
+class bdist_wheel(_bdist_wheel):
+    def get_tag(self):
+        if NET46_SUPPORT:
+            platform_tag = WINDOWS_PLATFORM_TAG
+        else:
+            platform_tag = "any"
+        abi_tag = "none"
+        python_tag = self._get_python_tag()
+        return python_tag, abi_tag, platform_tag
+
+    def _get_python_tag(self) -> str:
+        pyproject = PyProject.load("pyproject.toml")
+        project = pyproject.project or {}
+
+        requires_python = project.get("requires-python")
+        if not requires_python:
+            raise RuntimeError("project.requires-python is required")
+
+        specifiers = SpecifierSet(str(requires_python))
+        return ".".join(
+            f"cp3{minor}"
+            for minor in range(0, 100)
+            if specifiers.contains(Version(f"3.{minor}"), prereleases=True)
+        )
+
+
 # Monkey-patch Distribution s.t. it supports the dotnet_libs attribute
 Distribution.dotnet_libs = None
 
 cmdclass = {
     "build": build,
     "build_dotnet": build_dotnet,
     "develop": develop,
+    "bdist_wheel": bdist_wheel,
 }
 
 
 if NET46_SUPPORT:
     csproj = "src/compat/Python.Runtime.Compat.csproj"
-    plat_name = "win32"
 else:
     csproj = "src/runtime/Python.Runtime.csproj"
-    plat_name = "any"
 
 dotnet_libs = [DotnetLib("python-runtime", csproj, output="pythonnet/runtime")]
 
 setup(
     cmdclass=cmdclass,
     dotnet_libs=dotnet_libs,
-    options={"bdist_wheel": {"plat_name": plat_name}},
 )