Use dynamic versioning only

pyproject.toml

@@ -125,7 +125,6 @@ exclude = ["*assets*", "*tests*"]
 "*" = ["*"]
 
 [tool.setuptools_scm]
-version_file = "rdmo/_version.py"
 version_scheme = "release-branch-semver"
 
 [tool.ruff]

rdmo/__init__.py

@@ -1,4 +1,30 @@
 try:
-    from ._version import __version__, __version_tuple__, version, version_tuple
-except ImportError:
-    __version__ = __version_tuple__ = version = version_tuple = None
+    from importlib.metadata import PackageNotFoundError
+    from importlib.metadata import version as _dist_version
+except ImportError:  # pragma: no cover - for older Pythons if you ever care
+    from importlib_metadata import PackageNotFoundError  # type: ignore[assignment]
+    from importlib_metadata import version as _dist_version
+
+
+def _get_version() -> str:
+    try:
+        return _dist_version("rdmo")
+    except PackageNotFoundError:
+        return "0+unknown"
+
+__version__: str = _get_version()
+version: str = __version__
+
+def _version_to_tuple(v: str) -> tuple[int, ...]:
+    parts: list[int] = []
+    for part in v.split("."):
+        if part.isdigit():
+            parts.append(int(part))
+        else:
+            # stop on non-numeric pieces like "0.dev3+gXXXX"
+            break
+    return tuple(parts)
+
+
+__version_tuple__ = _version_to_tuple(__version__)
+version_tuple = __version_tuple__