[ie/weverse] Fix login error handling (#8458)

Authored by: seproDev

yt_dlp/extractor/polskieradio.py

@@ -262,14 +262,14 @@ class PolskieRadioAuditionIE(InfoExtractor):
             query=query, headers={'x-api-key': '9bf6c5a2-a7d0-4980-9ed7-a3f7291f2a81'})
 
     def _entries(self, playlist_id, has_episodes, has_articles):
-        for i in itertools.count(1) if has_episodes else []:
+        for i in itertools.count(0) if has_episodes else []:
             page = self._call_lp3(
                 'AudioArticle/GetListByCategoryId', {
                     'categoryId': playlist_id,
                     'PageSize': 10,
                     'skip': i,
                     'format': 400,
-                }, playlist_id, f'Downloading episode list page {i}')
+                }, playlist_id, f'Downloading episode list page {i + 1}')
             if not traverse_obj(page, 'data'):
                 break
             for episode in page['data']:
@@ -281,14 +281,14 @@ class PolskieRadioAuditionIE(InfoExtractor):
                     'timestamp': parse_iso8601(episode.get('datePublic')),
                 }
 
-        for i in itertools.count(1) if has_articles else []:
+        for i in itertools.count(0) if has_articles else []:
             page = self._call_lp3(
                 'Article/GetListByCategoryId', {
                     'categoryId': playlist_id,
                     'PageSize': 9,
                     'skip': i,
                     'format': 400,
-                }, playlist_id, f'Downloading article list page {i}')
+                }, playlist_id, f'Downloading article list page {i + 1}')
             if not traverse_obj(page, 'data'):
                 break
             for article in page['data']:

yt_dlp/extractor/weverse.py

@@ -45,10 +45,10 @@ class WeverseBaseIE(InfoExtractor):
             'x-acc-trace-id': str(uuid.uuid4()),
             'x-clog-user-device-id': str(uuid.uuid4()),
         }
-        check_username = self._download_json(
+        valid_username = traverse_obj(self._download_json(
-            f'{self._ACCOUNT_API_BASE}/signup/email/status', None,
+            f'{self._ACCOUNT_API_BASE}/signup/email/status', None, note='Checking username',
-            note='Checking username', query={'email': username}, headers=headers)
+            query={'email': username}, headers=headers, expected_status=(400, 404)), 'hasPassword')
-        if not check_username.get('hasPassword'):
+        if not valid_username:
             raise ExtractorError('Invalid username provided', expected=True)
 
         headers['content-type'] = 'application/json'