[compat] Add functools.cached_property

yt_dlp/extractor/common.py

@@ -11,6 +11,7 @@ import sys
 import time
 import xml.etree.ElementTree
 
+from ..compat import functools, re
 from ..compat import (
     compat_cookiejar_Cookie,
     compat_cookies_SimpleCookie,
@@ -25,7 +26,6 @@ from ..compat import (
     compat_urllib_parse_urlencode,
     compat_urllib_request,
     compat_urlparse,
-    re,
 )
 from ..downloader import FileDownloader
 from ..downloader.f4m import get_base_url, remove_encrypted_media
@@ -3748,7 +3748,7 @@ class InfoExtractor:
     def _get_automatic_captions(self, *args, **kwargs):
         raise NotImplementedError('This method must be implemented by subclasses')
 
-    @property
+    @functools.cached_property
     def _cookies_passed(self):
         """Whether cookies have been passed to YoutubeDL"""
         return self.get_param('cookiefile') is not None or self.get_param('cookiesfrombrowser') is not None

yt_dlp/extractor/youtube.py

@@ -2,7 +2,6 @@ import base64
 import calendar
 import copy
 import datetime
-import functools
 import hashlib
 import itertools
 import json
@@ -16,6 +15,7 @@ import time
 import traceback
 
 from .common import InfoExtractor, SearchInfoExtractor
+from ..compat import functools
 from ..compat import (
     compat_chr,
     compat_HTTPError,
@@ -534,7 +534,7 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
             args, [('VISITOR_DATA', ('INNERTUBE_CONTEXT', 'client', 'visitorData'), ('responseContext', 'visitorData'))],
             expected_type=str)
 
-    @property
+    @functools.cached_property
     def is_authenticated(self):
         return bool(self._generate_sapisidhash_header())
 
@@ -4402,7 +4402,7 @@ class YoutubeTabBaseInfoExtractor(YoutubeBaseInfoExtractor):
             check_get_keys='contents', fatal=False, ytcfg=ytcfg,
             note='Downloading API JSON with unavailable videos')
 
-    @property
+    @functools.cached_property
     def skip_webpage(self):
         return 'webpage' in self._configuration_arg('skip', ie_key=YoutubeTabIE.ie_key())