diff --git a/Makefile b/Makefile
index cef4bc6cb..ad9fa02ab 100644
--- a/Makefile
+++ b/Makefile
@@ -73,11 +73,11 @@ codetest:
 	flake8 .
 
 test:
-	$(PYTHON) -m pytest
+	$(PYTHON) -m pytest -Werror
 	$(MAKE) codetest
 
 offlinetest: codetest
-	$(PYTHON) -m pytest -k "not download"
+	$(PYTHON) -m pytest -Werror -m "not download"
 
 CODE_FOLDERS_CMD = find yt_dlp -type f -name '__init__.py' | sed 's,/__init__.py,,' | grep -v '/__' | sort
 CODE_FOLDERS != $(CODE_FOLDERS_CMD)
diff --git a/README.md b/README.md
index 37da789cf..dfe51c18b 100644
--- a/README.md
+++ b/README.md
@@ -108,7 +108,6 @@ File|Description
 [yt-dlp_x86.exe](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_x86.exe)|Windows (Win7 SP1+) standalone x86 (32-bit) binary
 [yt-dlp_min.exe](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_min.exe)|Windows (Win7 SP1+) standalone x64 binary built with `py2exe`<br/> ([Not recommended](#standalone-py2exe-builds-windows))
 [yt-dlp_linux](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_linux)|Linux standalone x64 binary
-[yt-dlp_linux.zip](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_linux.zip)|Unpackaged Linux executable (no auto-update)
 [yt-dlp_linux_armv7l](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_linux_armv7l)|Linux standalone armv7l (32-bit) binary
 [yt-dlp_linux_aarch64](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_linux_aarch64)|Linux standalone aarch64 (64-bit) binary
 [yt-dlp_win.zip](https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_win.zip)|Unpackaged Windows executable (no auto-update)
diff --git a/test/test_InfoExtractor.py b/test/test_InfoExtractor.py
index c633ce3e4..744587e45 100644
--- a/test/test_InfoExtractor.py
+++ b/test/test_InfoExtractor.py
@@ -1912,7 +1912,7 @@ jwplayer("mediaplayer").setup({"abouttext":"Visit Indie DB","aboutlink":"http:\/
         self.assertEqual(self.ie._search_nextjs_data('', None, fatal=False), {})
         self.assertEqual(self.ie._search_nextjs_data('', None, default=None), None)
         self.assertEqual(self.ie._search_nextjs_data('', None, default={}), {})
-        with self.assertRaises(DeprecationWarning):
+        with self.assertWarns(DeprecationWarning):
             self.assertEqual(self.ie._search_nextjs_data('', None, default='{}'), {})
 
 
diff --git a/yt_dlp/extractor/ceskatelevize.py b/yt_dlp/extractor/ceskatelevize.py
index 156b6a324..5d6335729 100644
--- a/yt_dlp/extractor/ceskatelevize.py
+++ b/yt_dlp/extractor/ceskatelevize.py
@@ -101,7 +101,7 @@ class CeskaTelevizeIE(InfoExtractor):
         site_name = self._og_search_property('site_name', webpage, fatal=False, default='Česká televize')
         playlist_title = self._og_search_title(webpage, default=None)
         if site_name and playlist_title:
-            playlist_title = re.split(r'\s*[—|]\s*%s' % (site_name, ), playlist_title, 1)[0]
+            playlist_title = re.split(r'\s*[—|]\s*%s' % (site_name, ), playlist_title, maxsplit=1)[0]
         playlist_description = self._og_search_description(webpage, default=None)
         if playlist_description:
             playlist_description = playlist_description.replace('\xa0', ' ')
diff --git a/yt_dlp/extractor/common.py b/yt_dlp/extractor/common.py
index bebbc6b43..7e9da7b3b 100644
--- a/yt_dlp/extractor/common.py
+++ b/yt_dlp/extractor/common.py
@@ -3526,7 +3526,7 @@ class InfoExtractor:
                     # See com/longtailvideo/jwplayer/media/RTMPMediaProvider.as
                     # of jwplayer.flash.swf
                     rtmp_url_parts = re.split(
-                        r'((?:mp4|mp3|flv):)', source_url, 1)
+                        r'((?:mp4|mp3|flv):)', source_url, maxsplit=1)
                     if len(rtmp_url_parts) == 3:
                         rtmp_url, prefix, play_path = rtmp_url_parts
                         a_format.update({
diff --git a/yt_dlp/extractor/thisvid.py b/yt_dlp/extractor/thisvid.py
index 9d3368ed7..04b083811 100644
--- a/yt_dlp/extractor/thisvid.py
+++ b/yt_dlp/extractor/thisvid.py
@@ -134,7 +134,7 @@ class ThisVidPlaylistBaseIE(InfoExtractor):
         title = re.split(
             r'(?i)\s*\|\s*ThisVid\.com\s*$',
             self._og_search_title(webpage, default=None)
-            or self._html_search_regex(r'(?s)<title\b[^>]*>(.+?)</title', webpage, 'title', fatal=False) or '', 1)[0] or None
+            or self._html_search_regex(r'(?s)<title\b[^>]*>(.+?)</title', webpage, 'title', fatal=False) or '', maxsplit=1)[0] or None
 
         return self.playlist_from_matches(
             self._generate_playlist_entries(url, playlist_id, webpage),
diff --git a/yt_dlp/utils/_utils.py b/yt_dlp/utils/_utils.py
index b63766912..aa7bf2ce4 100644
--- a/yt_dlp/utils/_utils.py
+++ b/yt_dlp/utils/_utils.py
@@ -2522,7 +2522,7 @@ def read_batch_urls(batch_fd):
             return False
         # "#" cannot be stripped out since it is part of the URI
         # However, it can be safely stripped out if following a whitespace
-        return re.split(r'\s#', url, 1)[0].rstrip()
+        return re.split(r'\s#', url, maxsplit=1)[0].rstrip()
 
     with contextlib.closing(batch_fd) as fd:
         return [url for url in map(fixup, fd) if url]