[cleanup] Misc fixes

Closes #7528

yt_dlp/networking/_urllib.py

@@ -28,7 +28,7 @@ from ._helper import (
     make_socks_proxy_opts,
     select_proxy,
 )
-from .common import Features, RequestHandler, Response, register
+from .common import Features, RequestHandler, Response, register_rh
 from .exceptions import (
     CertificateVerifyError,
     HTTPError,
@@ -372,7 +372,7 @@ def handle_response_read_exceptions(e):
         raise TransportError(cause=e) from e
 
 
-@register
+@register_rh
 class UrllibRH(RequestHandler, InstanceStoreMixin):
     _SUPPORTED_URL_SCHEMES = ('http', 'https', 'data', 'ftp')
     _SUPPORTED_PROXY_SCHEMES = ('http', 'socks4', 'socks4a', 'socks5', 'socks5h')

yt_dlp/networking/common.py

@@ -105,7 +105,7 @@ class RequestDirector:
 _REQUEST_HANDLERS = {}
 
 
-def register(handler):
+def register_rh(handler):
     """Register a RequestHandler class"""
     assert issubclass(handler, RequestHandler), f'{handler} must be a subclass of RequestHandler'
     assert handler.RH_KEY not in _REQUEST_HANDLERS, f'RequestHandler {handler.RH_KEY} already registered'