[cleanup] Consistent style for file heads

yt_dlp/compat/__init__.py

@@ -7,7 +7,6 @@
 from ._deprecated import *  # noqa: F401, F403
 from .compat_utils import passthrough_module
 
-
 # XXX: Implement this the same way as other DeprecationWarnings without circular import
 try:
     passthrough_module(__name__, '._legacy', callback=lambda attr: warnings.warn(

yt_dlp/compat/_legacy.py

@@ -22,7 +22,7 @@
 import xml.etree.ElementTree as etree
 from subprocess import DEVNULL
 
-from .compat_utils import passthrough_module
+from .compat_utils import passthrough_module  # isort: split
 from .asyncio import run as compat_asyncio_run  # noqa: F401
 from .re import Pattern as compat_Pattern  # noqa: F401
 from .re import match as compat_Match  # noqa: F401
@@ -30,7 +30,6 @@
 from ..dependencies import brotli as compat_brotli  # noqa: F401
 from ..dependencies import websockets as compat_websockets  # noqa: F401
 
-
 passthrough_module(__name__, '...utils', ('WINDOWS_VT_MODE', 'windows_enable_vt_mode'))
 
 

yt_dlp/compat/compat_utils.py

@@ -4,7 +4,6 @@
 import sys
 import types
 
-
 _NO_ATTRIBUTE = object()
 
 _Package = collections.namedtuple('Package', ('name', 'version'))