[test] Convert warnings into errors

* And fix some existing warnings

Authored by: fstirlitz

yt_dlp/compat.py

@@ -159,7 +159,7 @@ def windows_enable_vt_mode():  # TODO: Do this the proper way https://bugs.pytho
     startupinfo = subprocess.STARTUPINFO()
     startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
     try:
-        subprocess.Popen('', shell=True, startupinfo=startupinfo)
+        subprocess.Popen('', shell=True, startupinfo=startupinfo).wait()
         WINDOWS_VT_MODE = True
     except Exception:
         pass

yt_dlp/extractor/gedidigital.py

@@ -11,7 +11,7 @@ from ..utils import (
 
 
 class GediDigitalIE(InfoExtractor):
-    _VALID_URL = r'''(?x)(?P<url>(?:https?:)//video\.
+    _VALID_URL = r'''(?x:(?P<url>(?:https?:)//video\.
         (?:
             (?:
                 (?:espresso\.)?repubblica
@@ -33,7 +33,7 @@ class GediDigitalIE(InfoExtractor):
                 |corrierealpi
                 |lasentinella
             )\.gelocal
-        )\.it(?:/[^/]+){2,4}/(?P<id>\d+))(?:$|[?&].*)'''
+        )\.it(?:/[^/]+){2,4}/(?P<id>\d+))(?:$|[?&].*))'''
     _TESTS = [{
         'url': 'https://video.lastampa.it/politica/il-paradosso-delle-regionali-la-lega-vince-ma-sembra-aver-perso/121559/121683',
         'md5': '84658d7fb9e55a6e57ecc77b73137494',

yt_dlp/extractor/gfycat.py

@@ -10,7 +10,7 @@ from ..utils import (
 
 
 class GfycatIE(InfoExtractor):
-    _VALID_URL = r'(?i)https?://(?:(?:www|giant|thumbs)\.)?gfycat\.com/(?:ru/|ifr/|gifs/detail/)?(?P<id>[^-/?#\."\']+)'
+    _VALID_URL = r'https?://(?:(?:www|giant|thumbs)\.)?gfycat\.com/(?i:ru/|ifr/|gifs/detail/)?(?P<id>[^-/?#\."\']+)'
     _TESTS = [{
         'url': 'http://gfycat.com/DeadlyDecisiveGermanpinscher',
         'info_dict': {

yt_dlp/extractor/wimtv.py

@@ -12,14 +12,14 @@ from ..utils import (
 class WimTVIE(InfoExtractor):
     _player = None
     _UUID_RE = r'[\da-f]{8}-[\da-f]{4}-[\da-f]{4}-[\da-f]{4}-[\da-f]{12}'
-    _VALID_URL = r'''(?x)
+    _VALID_URL = r'''(?x:
         https?://platform.wim.tv/
         (?:
             (?:embed/)?\?
             |\#/webtv/.+?/
         )
         (?P<type>vod|live|cast)[=/]
-        (?P<id>%s).*?''' % _UUID_RE
+        (?P<id>%s).*?)''' % _UUID_RE
     _TESTS = [{
         # vod stream
         'url': 'https://platform.wim.tv/embed/?vod=db29fb32-bade-47b6-a3a6-cb69fe80267a',