[teachable] Add support for teachable based platform sites (closes #5451, closes #18150, closes #18272)

youtube_dl/extractor/extractors.py

@@ -1091,6 +1091,10 @@ from .tass import TassIE
 from .tastytrade import TastyTradeIE
 from .tbs import TBSIE
 from .tdslifeway import TDSLifewayIE
+from .teachable import (
+    TeachableIE,
+    TeachableCourseIE,
+)
 from .teachertube import (
     TeacherTubeIE,
     TeacherTubeUserIE,
@@ -1240,10 +1244,6 @@ from .uplynk import (
     UplynkIE,
     UplynkPreplayIE,
 )
-from .upskill import (
-    UpskillIE,
-    UpskillCourseIE,
-)
 from .urort import UrortIE
 from .urplay import URPlayIE
 from .usanetwork import USANetworkIE

youtube_dl/extractor/generic.py

@@ -109,6 +109,7 @@ from .vice import ViceIE
 from .xfileshare import XFileShareIE
 from .cloudflarestream import CloudflareStreamIE
 from .peertube import PeerTubeIE
+from .teachable import TeachableIE
 from .indavideo import IndavideoEmbedIE
 from .apa import APAIE
 from .foxnews import FoxNewsIE
@@ -3112,6 +3113,10 @@ class GenericIE(InfoExtractor):
             return self.playlist_from_matches(
                 peertube_urls, video_id, video_title, ie=PeerTubeIE.ie_key())
 
+        teachable_url = TeachableIE._extract_url(webpage, url)
+        if teachable_url:
+            return self.url_result(teachable_url)
+
         indavideo_urls = IndavideoEmbedIE._extract_urls(webpage)
         if indavideo_urls:
             return self.playlist_from_matches(