add guard

Co-authored-by: bashonly <88596187+bashonly@users.noreply.github.com>

yt_dlp/extractor/youtube/_base.py

@@ -455,15 +455,13 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
     def _initialize_consent(self):
         if self._has_auth_cookies:
             return
-        cookies = self._youtube_cookies
-        socs = cookies.get('SOCS')
+        socs = self._youtube_cookies.get('SOCS')
         if socs and not socs.value.startswith('CAA'):  # not consented
             return
         self._set_cookie('.youtube.com', 'SOCS', 'CAI', secure=True)  # accept all (required for mixes)
 
     def _initialize_pref(self):
-        cookies = self._youtube_cookies
-        pref_cookie = cookies.get('PREF')
+        pref_cookie = self._youtube_cookies.get('PREF')
         pref = {}
         if pref_cookie:
             try:
@@ -474,9 +472,9 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
         self._set_cookie('.youtube.com', name='PREF', value=urllib.parse.urlencode(pref))
 
     def _initialize_cookie_auth(self):
-        self._had_cookie_auth = False
+        self._passed_auth_cookies = False
         if self._has_auth_cookies:
-            self._had_cookie_auth = True
+            self._passed_auth_cookies = True
             self.write_debug('Found YouTube account cookies')
 
     def _real_initialize(self):
@@ -617,7 +615,7 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
         response = super()._request_webpage(*args, **kwargs)
 
         # Check that we are still logged-in and cookies have not rotated after every request
-        if self._had_cookie_auth and not self._has_auth_cookies:
+        if getattr(self, '_passed_auth_cookies', None) and not self._has_auth_cookies:
             self.report_warning(
                 'The provided YouTube account cookies are no longer valid. '
                 'They have likely been rotated in the browser as a security measure. '