Fix some linter and typos

yt_dlp/extractor/crunchyroll.py

@@ -428,7 +428,7 @@ Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
             r'<div class="showmedia-trailer-notice">(.+?)</div>',
             webpage, 'trailer-notice', default='')
         if note_m:
-            raise ExtractorError(note_m)
+            raise ExtractorError(note_m, expected=True)
 
         mobj = re.search(r'Page\.messaging_box_controller\.addItems\(\[(?P<msg>{.+?})\]\)', webpage)
         if mobj:

yt_dlp/extractor/viu.py

@@ -14,6 +14,7 @@ from ..compat import (
 from ..utils import (
     ExtractorError,
     int_or_none,
+    try_get,
     smuggle_url,
     unsmuggle_url,
 )
@@ -344,7 +345,7 @@ class ViuOTTIE(InfoExtractor):
                         video_id, 'Downloading stream info', query=query, headers=headers)
                     try:
                         stream_data = self._detect_error(stream_data)['stream']
-                    except (ExtractorError, KeyError): # if still not working, give up
+                    except (ExtractorError, KeyError):  # if still not working, give up
                         self._raise_login_required()
 
         if not stream_data: