Enhance deprecated arg for kwargs in CSV datasets (#3446)

* [DLMED] fix deprecated arg

Signed-off-by: Nic Ma <[email protected]>

* [MONAI] python code formatting

Signed-off-by: monai-bot <[email protected]>

Co-authored-by: monai-bot <[email protected]>

Author: Nic-Ma

monai/data/dataset.py

@@ -1276,6 +1276,9 @@ def __init__(
             else:
                 raise ValueError("`src` must be file path or pandas `DataFrame`.")
 
+        # in case treating deprecated arg `filename` as kwargs, remove it from `kwargs`
+        kwargs.pop("filename", None)
+
         data = convert_tables_to_dicts(
             dfs=dfs, row_indices=row_indices, col_names=col_names, col_types=col_types, col_groups=col_groups, **kwargs
         )

monai/data/iterable_dataset.py

@@ -205,7 +205,10 @@ def __init__(
         self.col_groups = col_groups
         self.shuffle = shuffle
         self.seed = seed
+        # in case treating deprecated arg `filename` as kwargs, remove it from `kwargs`
+        kwargs.pop("filename", None)
         self.kwargs = kwargs
+
         self.iters: List[Iterable] = self.reset()
         super().__init__(data=None, transform=transform)  # type: ignore