finished docker manylinux compliation for pypi

build/pyproject_utils.py

@@ -2,7 +2,7 @@
 
 from __future__ import annotations
 
-import importlib
+import ast
 import subprocess
 import sys
 from pathlib import Path
@@ -41,17 +41,29 @@ def extras_require(repo_root: Path) -> dict[str, list[str]]:
 
 def _resolve_version_attr(repo_root: Path, attr: str) -> str:
     """Resolve a setuptools dynamic version attr (e.g. orisys.__version__)."""
-    src_dir = str(repo_root / "src")
-    if src_dir not in sys.path:
-        sys.path.insert(0, src_dir)
     module_name, _, attr_name = attr.partition(".")
     if not attr_name:
         raise RuntimeError(f"Invalid dynamic version attr: {attr!r}")
-    module = importlib.import_module(module_name)
-    value = module
-    for name in attr_name.split("."):
-        value = getattr(value, name)
-    return str(value)
+
+    # Avoid importing package modules here: __init__ may import heavy runtime deps
+    # (e.g., cv2/numpy) that are not required just to read __version__.
+    rel_module = Path(*module_name.split("."))
+    module_file = repo_root / "src" / rel_module.with_suffix(".py")
+    if not module_file.is_file():
+        module_file = repo_root / "src" / rel_module / "__init__.py"
+    if not module_file.is_file():
+        raise RuntimeError(f"Cannot resolve module file for dynamic version attr: {attr!r}")
+
+    tree = ast.parse(module_file.read_text(encoding="utf-8"), filename=str(module_file))
+    target_name = attr_name.split(".")[0]
+    for node in tree.body:
+        if isinstance(node, ast.Assign):
+            for target in node.targets:
+                if isinstance(target, ast.Name) and target.id == target_name:
+                    value = ast.literal_eval(node.value)
+                    return str(value)
+
+    raise RuntimeError(f"Attribute {target_name!r} not found in {module_file}")
 
 
 def get_version(repo_root: Path) -> str: