X-Git-Url: https://jfr.im/git/yt-dlp.git/blobdiff_plain/db50f19d76c6870a5a13d0cab9287d684fd7449a..add96eb9f84cfffe85682bf2fb85135746994ee8:/yt_dlp/extractor/packtpub.py

diff --git a/yt_dlp/extractor/packtpub.py b/yt_dlp/extractor/packtpub.py
index 3e969c846..38ffd3451 100644
--- a/yt_dlp/extractor/packtpub.py
+++ b/yt_dlp/extractor/packtpub.py
@@ -63,7 +63,7 @@ def _real_extract(self, url):
             headers['Authorization'] = 'Bearer ' + self._TOKEN
         try:
             video_url = self._download_json(
-                'https://services.packtpub.com/products-v1/products/%s/%s/%s' % (course_id, chapter_id, video_id), video_id,
+                f'https://services.packtpub.com/products-v1/products/{course_id}/{chapter_id}/{video_id}', video_id,
                 'Downloading JSON video', headers=headers)['data']
         except ExtractorError as e:
             if isinstance(e.cause, HTTPError) and e.cause.status == 400:
@@ -109,17 +109,16 @@ class PacktPubCourseIE(PacktPubBaseIE):
 
     @classmethod
     def suitable(cls, url):
-        return False if PacktPubIE.suitable(url) else super(
-            PacktPubCourseIE, cls).suitable(url)
+        return False if PacktPubIE.suitable(url) else super().suitable(url)
 
     def _real_extract(self, url):
         mobj = self._match_valid_url(url)
         url, course_id = mobj.group('url', 'id')
 
         course = self._download_json(
-            self._STATIC_PRODUCTS_BASE + '%s/toc' % course_id, course_id)
+            self._STATIC_PRODUCTS_BASE + f'{course_id}/toc', course_id)
         metadata = self._download_json(
-            self._STATIC_PRODUCTS_BASE + '%s/summary' % course_id,
+            self._STATIC_PRODUCTS_BASE + f'{course_id}/summary',
             course_id, fatal=False) or {}
 
         entries = []