[hdf5file] check if file exists prior to iterate opening on it

est/thirdparty/silx/hdf5file.py

@@ -197,6 +197,11 @@ def retry_get_data(timeout=None):
 
     def decorator(method):
         def wrapper(url, *args, **kw):
+            if not os.path.exists(url.file_path()):
+                raise OSError(
+                    "Unable to open file: {}. Does not exist."
+                    "".format(url.file_path())
+                )
             os.environ["HDF5_USE_FILE_LOCKING"] = "FALSE"
             t0 = time.time()
             while True: