Add ruff, remove black, isort, flake8, pylint (#3092)

* black, isort, flake8 -> ruff

* remove unused

* add back needed import

* fix

tests/test_loaders.py

@@ -17,7 +17,7 @@ class TestModelsUtils:
 
     def setup_method(self) -> None:
         # load config
-        self.cfg = DictDefault(  # pylint: disable=attribute-defined-outside-init
+        self.cfg = DictDefault(
             {
                 "base_model": "HuggingFaceTB/SmolLM2-135M",
                 "model_type": "AutoModelForCausalLM",
@@ -30,20 +30,16 @@ class TestModelsUtils:
                 "device_map": "auto",
             }
         )
-        self.tokenizer = MagicMock(  # pylint: disable=attribute-defined-outside-init
-            spec=PreTrainedTokenizerBase
-        )
-        self.inference = False  # pylint: disable=attribute-defined-outside-init
-        self.reference_model = True  # pylint: disable=attribute-defined-outside-init
+        self.tokenizer = MagicMock(spec=PreTrainedTokenizerBase)
+        self.inference = False
+        self.reference_model = True
 
         # init ModelLoader
-        self.model_loader = (  # pylint: disable=attribute-defined-outside-init
-            ModelLoader(
-                cfg=self.cfg,
-                tokenizer=self.tokenizer,
-                inference=self.inference,
-                reference_model=self.reference_model,
-            )
+        self.model_loader = ModelLoader(
+            cfg=self.cfg,
+            tokenizer=self.tokenizer,
+            inference=self.inference,
+            reference_model=self.reference_model,
         )
 
     def test_set_device_map_config(self):
@@ -51,7 +47,7 @@ class TestModelsUtils:
         device_map = self.cfg.device_map
         if is_torch_mps_available():
             device_map = "mps"
-        # pylint: disable=protected-access
+
         self.model_loader._set_device_map_config()
         if is_deepspeed_zero3_enabled():
             assert "device_map" not in self.model_loader.model_kwargs
@@ -78,7 +74,6 @@ class TestModelsUtils:
         self.cfg.gptq = gptq
         self.cfg.adapter = adapter
 
-        # pylint: disable=protected-access
         self.model_loader._set_quantization_config()
         if "quantization_config" in self.model_loader.model_kwargs or self.cfg.gptq:
             assert not (
@@ -194,7 +189,7 @@ class TestModelsUtils:
         is_fsdp,
         expected,
     ):
-        res = _get_parallel_config_kwargs(  # pylint: disable=protected-access
+        res = _get_parallel_config_kwargs(
             world_size,
             tensor_parallel_size,
             context_parallel_size,