fix numba stiching blend error and add numpy blend fallback

build/build_nuitka.py

@@ -20,7 +20,7 @@ from paths import NUITKA_COMPILE_DIR, NUITKA_WHEEL_DIR, REPO_ROOT, repo_path
 from pyproject_utils import bundle_items, extras_require, get_version, install_requires
 from verify import verify_built_wheel
 from wheel_build import publish_wheel_to_sdk, run_bdist_wheel, write_wheel_setup
-from wheel_layout import copy_bundle_items, package_data_from_bundle
+from wheel_layout import copy_bundle_items, copy_orisys_blend, package_data_from_bundle
 
 
 def _reset_dir(path) -> None:
@@ -51,6 +51,10 @@ def build() -> None:
 
     ext_suffix = copy_compiled_orisys(pkg_dir, ext_file)
 
+    wheel_root = NUITKA_WHEEL_DIR / "wheel_root"
+    blend_count = copy_orisys_blend(REPO_ROOT, wheel_root)
+    print(f"Staged orisys_blend Python modules: {blend_count}")
+
     # Bundle rules live in pyproject.toml → [[tool.orisys.bundle.items]]
     bundle = bundle_items(REPO_ROOT)
     copied_counts = copy_bundle_items(REPO_ROOT, pkg_dir, bundle)

build/nuitka_compile.py

@@ -19,6 +19,7 @@ NUITKA_INCLUDE_PACKAGES = (
 )
 
 NUITKA_NOFOLLOW_IMPORTS = (
+    "orisys_blend",
     "cupy",
     "cupyx",
     "pyopencl",

build/wheel_build.py

@@ -31,7 +31,7 @@ setup(
     version="{version}",
     description="Orisys - Optical Tactile Sensor SDK (Nuitka Compiled)",
     author="Orisys",
-    packages=['orisys', 'orisys.examples'],
+    packages=['orisys', 'orisys.examples', 'orisys_blend'],
     package_dir={{'': 'wheel_root'}},
     package_data={package_data},
     include_package_data=True,

build/wheel_layout.py

@@ -83,9 +83,22 @@ def package_data_from_bundle(ext_suffix: str, items: list[dict]) -> dict[str, li
     package_data: dict[str, list[str]] = {
         "orisys": [f"*{ext_suffix}"],
         "orisys.examples": ["*.py", "README.md", "viz/**/*.py", "pipeline/**/*.py", "gui/**/*.py"],
+        "orisys_blend": ["*.py"],
     }
     for item in items:
         if item["name"] == "examples":
             continue
         package_data["orisys"].extend(package_data_paths_for_item(item))
     return package_data
+
+
+def copy_orisys_blend(repo_root: Path, wheel_root: Path) -> int:
+    """Copy pure-Python orisys_blend (Numba kernels) next to the Nuitka orisys .pyd."""
+    src = repo_root / "src" / "orisys_blend"
+    dst = wheel_root / "orisys_blend"
+    if dst.exists():
+        shutil.rmtree(dst)
+    shutil.copytree(src, dst)
+    count = sum(1 for p in dst.rglob("*.py") if p.is_file())
+    print(f"Copied orisys_blend ({count} .py files) to {dst}")
+    return count