fix: ignore KeyboardInterrupt during shutting down the pool

Author: georgeh0

python/cocoindex/subprocess_exec.py

@@ -45,7 +45,7 @@ def shutdown_pool_at_exit() -> None:
         if _pool is not None:
             try:
                 print("Before shutdown")
-                _pool.shutdown(cancel_futures=True)
+                _pool.shutdown(wait=True, cancel_futures=True)
                 print("After shutdown")
             except Exception as e:
                 _logger.error(

python/cocoindex/tests/conftest.py

@@ -10,6 +10,9 @@ def _cocoindex_env_fixture() -> typing.Generator[None, None, None]:
         print("Shutdown the subprocess pool at exit in hook.")
         import cocoindex.subprocess_exec
 
-        cocoindex.subprocess_exec.shutdown_pool_at_exit()
+        try:
+            cocoindex.subprocess_exec.shutdown_pool_at_exit()
+        except KeyboardInterrupt:
+            print("KeyboardInterrupt ignored.")
     except Exception:
         pass