try to debug netcdf4 failure

Author: DanielYang59

tests/io/abinit/test_netcdf.py

@@ -85,6 +85,17 @@ def test_read_si2(self):
 
     @pytest.mark.skipif(netCDF4 is None, reason="Requires Netcdf4")
     def test_read_fe(self):
+        import h5py
+
+        print("\n=== netCDF4 / HDF5 diagnostic info ===")
+        print(f"netCDF4 version: {netCDF4.__version__}")
+        print(f"h5py version: {h5py.__version__}")
+        print(f"HDF5 C library version: {h5py.version.hdf5_version}")
+        print(f"NumPy version: {np.__version__}")
+        print(f"Current working directory: {os.getcwd()}")
+        print(f"Files in cwd: {os.listdir('.')}")
+        print("======================================\n")
+
         with tarfile.open(f"{TEST_DIR}/Fe_magmoms_collinear_GSR.tar.xz", mode="r:xz") as t:
             # TODO: remove attr check after only 3.12+
             if hasattr(tarfile, "data_filter"):