fixup! feat(core.utils): forward sys.path to subprocess in lightweight-import test

Author: cpcloud

cuda_core/tests/test_program_cache.py

@@ -117,6 +117,7 @@ def test_cuda_core_utils_memoryview_import_is_lightweight():
     import the program-cache backends; the cache modules pull in extra
     driver/NVRTC machinery that memoryview-only consumers have no reason
     to load."""
+    import os
     import subprocess
     import sys
     import textwrap
@@ -134,7 +135,12 @@ def test_cuda_core_utils_memoryview_import_is_lightweight():
         _ = u.make_program_cache_key
         assert "cuda.core.utils._program_cache" in sys.modules
     """)
-    subprocess.run([sys.executable, "-c", prog], check=True)  # noqa: S603
+    # Forward pytest's sys.path to the subprocess via PYTHONPATH so it can
+    # find the same cuda.core install the parent process is using (CI runs
+    # may rely on pytest-added rootdirs that env-only inheritance misses).
+    env = os.environ.copy()
+    env["PYTHONPATH"] = os.pathsep.join(p for p in sys.path if p)
+    subprocess.run([sys.executable, "-c", prog], check=True, env=env)  # noqa: S603
 
 
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