diff --git a/src/pcloud/api.py b/src/pcloud/api.py
index d802d51..2a2f9b7 100644
--- a/src/pcloud/api.py
+++ b/src/pcloud/api.py
@@ -132,7 +132,9 @@ def uploadfile(self, **kwargs):
                 files = {filename: open(f, "rb")}
         #                kwargs['filename'] = filename
         else:  # 'data' in kwargs:
-            files = {"f": (kwargs.pop("filename", "data-upload.bin"), kwargs.pop("data"))}
+            files = {
+                "f": (kwargs.pop("filename", "data-upload.bin"), kwargs.pop("data"))
+            }
         return self._upload("uploadfile", files, **kwargs)
 
     @RequiredParameterCheck(("progresshash",))
@@ -218,7 +220,7 @@ def file_truncate(self, **kwargs):
 
     @RequiredParameterCheck(("fd", "data"))
     def file_write(self, **kwargs):
-        files = {"file": ('upload-file.io', BytesIO(kwargs.pop("data")))}
+        files = {"file": ("upload-file.io", BytesIO(kwargs.pop("data")))}
         return self._upload("file_write", files, **kwargs)
 
     @RequiredParameterCheck(("fd",))
diff --git a/src/pcloud/tests/conftest.py b/src/pcloud/tests/conftest.py
index f668966..2fe5dab 100644
--- a/src/pcloud/tests/conftest.py
+++ b/src/pcloud/tests/conftest.py
@@ -20,4 +20,3 @@ def start_mock_server():
     httpd_thread.join(1)
     httpd_thread._is_stopped = True
     httpd_thread._tstate_lock = None
-
diff --git a/src/pcloud/tests/server.py b/src/pcloud/tests/server.py
index 0747732..0c898e5 100644
--- a/src/pcloud/tests/server.py
+++ b/src/pcloud/tests/server.py
@@ -37,7 +37,7 @@ def do_POST(self):
         self.send_response(200)
         self.send_header("Content-type", "applicaton/json")
         self.end_headers()
-        print(f"File: {file_}, Size: {size}", end='')
+        print(f"File: {file_}, Size: {size}", end="")
         # Send the json message
         self.wfile.write(
             bytes('{ "result": 0, "metadata": {"size": %s} }' % size, "utf-8")
diff --git a/src/pcloud/tests/test_api.py b/src/pcloud/tests/test_api.py
index 39869b2..6fbe9ad 100644
--- a/src/pcloud/tests/test_api.py
+++ b/src/pcloud/tests/test_api.py
@@ -18,7 +18,6 @@ class DummyPCloudFS(PCloudFS):
 
 @pytest.mark.usefixtures("start_mock_server")
 class TestPcloudApi(object):
-
     def test_getdigest(self):
         api = DummyPyCloud("foo", "bar")
         assert api.getdigest() == b"YGtAxbUpI85Zvs7lC7Z62rBwv907TBXhV2L867Hkh"
@@ -38,7 +37,6 @@ def test_upload_files(self):
 
 @pytest.mark.usefixtures("start_mock_server")
 class TestPcloudFs(object):
-
     def test_write(self, capsys):
         with DummyPCloudFS(username="foo", password="bar") as fs:
             data = b"hello pcloud fs unittest"
@@ -46,4 +44,3 @@ def test_write(self, capsys):
             fs_f.write(data)
             captured = capsys.readouterr()
             assert captured.out == "File: b'hello pcloud fs unittest', Size: 24"
-