class VKIE(InfoExtractor):
IE_NAME = 'vk.com'
_VALID_URL = r'https?://vk\.com/(?:videos.*?\?.*?z=)?video(?P<id>.*?)(?:\?|%2F|$)'
class VKIE(InfoExtractor):
IE_NAME = 'vk.com'
_VALID_URL = r'https?://vk\.com/(?:videos.*?\?.*?z=)?video(?P<id>.*?)(?:\?|%2F|$)'