diff --git a/sdk/downloader.py b/sdk/downloader.py
index 675c915..f924292 100644
--- a/sdk/downloader.py
+++ b/sdk/downloader.py
@@ -4,7 +4,6 @@
 import sys
 import importlib
 
-import diffusers
 import transformers
 
 # Authorized module names for download
@@ -396,7 +395,7 @@ def parse_arguments():
                         help="Path to the downloads directory")
     parser.add_argument("model_name", type=str,
                         help="Model name")
-    parser.add_argument("model_module", type=str, help=f"Module name",
+    parser.add_argument("model_module", type=str, help="Module name",
                         choices=AUTHORIZED_MODULE_NAMES)
 
     # Optional arguments regarding the model
diff --git a/sdk/tests/test_downloader.py b/sdk/tests/test_downloader.py
index b95d4c3..61e0a75 100644
--- a/sdk/tests/test_downloader.py
+++ b/sdk/tests/test_downloader.py
@@ -4,12 +4,13 @@
 import argparse
 import json
 from unittest.mock import patch, MagicMock
+
 sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__),
                                                 "..")))
-from downloader import (Model, Tokenizer, download_model,
-                        download_transformers_tokenizer,
-                        is_path_valid_for_download, process_options,
-                        map_args_to_model, parse_arguments, main, exit_error)
+from downloader import (Model, Tokenizer, download_model, # noqa: E402
+                          download_transformers_tokenizer,
+                          is_path_valid_for_download, process_options,
+                          map_args_to_model, main, exit_error)
 
 
 class TestDownloader(unittest.TestCase):
@@ -46,13 +47,13 @@ def test_build_paths(self):
     def test_build_paths_transformers(self):
         model = Model(name="TestModel", module="transformers")
         model.build_paths("/models")
-        expected_download_path = f"/models\\TestModel\\model"
+        expected_download_path = "/models\\TestModel\\model"
         self.assertEqual(model.download_path, expected_download_path)
 
     def test_build_paths_non_transformers(self):
         model = Model(name="TestModel", module="non_transformers")
         model.build_paths("/models")
-        expected_download_path = f"/models\\TestModel"
+        expected_download_path = "/models\\TestModel"
         self.assertEqual(model.download_path, expected_download_path)
 
     @patch('os.path.exists')
@@ -269,11 +270,13 @@ def test_download(self, mock_download_model):
 
     @patch('os.path.exists')
     @patch('os.listdir')
-    def test_download_transformers_tokenizer_exception(self, mock_listdir, mock_exists):
+    def test_download_transformers_tokenizer_exception(self, mock_listdir,
+                                                       mock_exists):
         mock_exists.return_value = False
         mock_listdir.return_value = []
         model = Model(name="TestModel", module="transformers",
-                      tokenizer=Tokenizer(class_name="PreTrainedTokenizerFast"))
+                      tokenizer=Tokenizer(
+                          class_name="PreTrainedTokenizerFast"))
         model.tokenizer.download_path = "/tokenizer_path"
         model.base_path = "/model_path"
 
@@ -284,4 +287,4 @@ def test_download_transformers_tokenizer_exception(self, mock_listdir, mock_exis
 
 
 if __name__ == '__main__':
-    unittest.main() # pragma: no cover
+    unittest.main()  # pragma: no cover