[misc] upgrade format to py39 (#7256)

src/llamafactory/data/processor/unsupervised.py

@@ -13,7 +13,8 @@
 # limitations under the License.
 
 from collections import defaultdict
-from typing import TYPE_CHECKING, Any, Dict, List, Optional, Sequence, Tuple
+from collections.abc import Sequence
+from typing import TYPE_CHECKING, Any, Optional
 
 from ...extras import logging
 from ..data_utils import Role
@@ -30,14 +31,14 @@ logger = logging.get_logger(__name__)
 class UnsupervisedDatasetProcessor(DatasetProcessor):
     def _encode_data_example(
         self,
-        prompt: Sequence[Dict[str, str]],
-        response: Sequence[Dict[str, str]],
+        prompt: Sequence[dict[str, str]],
+        response: Sequence[dict[str, str]],
         system: Optional[str],
         tools: Optional[str],
         images: Sequence["ImageInput"],
         videos: Sequence["VideoInput"],
         audios: Sequence["AudioInput"],
-    ) -> Tuple[List[int], List[int]]:
+    ) -> tuple[list[int], list[int]]:
         if len(response) == 1:
             messages = prompt + response
         else:
@@ -56,7 +57,7 @@ class UnsupervisedDatasetProcessor(DatasetProcessor):
         labels = labels[:target_len]
         return input_ids, labels
 
-    def preprocess_dataset(self, examples: Dict[str, List[Any]]) -> Dict[str, List[Any]]:
+    def preprocess_dataset(self, examples: dict[str, list[Any]]) -> dict[str, list[Any]]:
         # build inputs with format `<bos> X` and labels with format `Y <eos>`
         model_inputs = defaultdict(list)
         for i in range(len(examples["_prompt"])):
@@ -84,7 +85,7 @@ class UnsupervisedDatasetProcessor(DatasetProcessor):
 
         return model_inputs
 
-    def print_data_example(self, example: Dict[str, List[int]]) -> None:
+    def print_data_example(self, example: dict[str, list[int]]) -> None:
         print("input_ids:\n{}".format(example["input_ids"]))
         print("inputs:\n{}".format(self.tokenizer.decode(example["input_ids"], skip_special_tokens=False)))
         print("label_ids:\n{}".format(example["labels"]))