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

diff --git a/yt_dlp/extractor/stanfordoc.py b/yt_dlp/extractor/stanfordoc.py
index be0f4afc1..ab41091cf 100644
--- a/yt_dlp/extractor/stanfordoc.py
+++ b/yt_dlp/extractor/stanfordoc.py
@@ -19,7 +19,7 @@ class StanfordOpenClassroomIE(InfoExtractor):
             'id': 'PracticalUnix_intro-environment',
             'ext': 'mp4',
             'title': 'Intro Environment',
-        }
+        },
     }
 
     def _real_extract(self, url):
@@ -34,12 +34,12 @@ def _real_extract(self, url):
                 'upload_date': None,
             }
 
-            baseUrl = 'http://openclassroom.stanford.edu/MainFolder/courses/' + course + '/videos/'
-            xmlUrl = baseUrl + video + '.xml'
-            mdoc = self._download_xml(xmlUrl, info['id'])
+            base_url = 'http://openclassroom.stanford.edu/MainFolder/courses/' + course + '/videos/'
+            xml_url = base_url + video + '.xml'
+            mdoc = self._download_xml(xml_url, info['id'])
             try:
                 info['title'] = mdoc.findall('./title')[0].text
-                info['url'] = baseUrl + mdoc.findall('./videoFile')[0].text
+                info['url'] = base_url + mdoc.findall('./videoFile')[0].text
             except IndexError:
                 raise ExtractorError('Invalid metadata XML file')
             return info
@@ -66,7 +66,7 @@ def _real_extract(self, url):
 
             links = orderedSet(re.findall(r'<a href="(VideoPage\.php\?[^"]+)">', coursepage))
             info['entries'] = [self.url_result(
-                'http://openclassroom.stanford.edu/MainFolder/%s' % unescapeHTML(l)
+                f'http://openclassroom.stanford.edu/MainFolder/{unescapeHTML(l)}',
             ) for l in links]
             return info
         else:  # Root page
@@ -78,12 +78,12 @@ def _real_extract(self, url):
             }
             info['title'] = info['id']
 
-            rootURL = 'http://openclassroom.stanford.edu/MainFolder/HomePage.php'
-            rootpage = self._download_webpage(rootURL, info['id'],
+            root_url = 'http://openclassroom.stanford.edu/MainFolder/HomePage.php'
+            rootpage = self._download_webpage(root_url, info['id'],
                                               errnote='Unable to download course info page')
 
             links = orderedSet(re.findall(r'<a href="(CoursePage\.php\?[^"]+)">', rootpage))
             info['entries'] = [self.url_result(
-                'http://openclassroom.stanford.edu/MainFolder/%s' % unescapeHTML(l)
+                f'http://openclassroom.stanford.edu/MainFolder/{unescapeHTML(l)}',
             ) for l in links]
             return info