[drtv] Add missing extractor import

youtube_dl/extractor/__init__.py

@@ -63,6 +63,7 @@ from .dailymotion import (
 from .daum import DaumIE
 from .dotsub import DotsubIE
 from .dreisat import DreiSatIE
+from .drtv import DRTVIE
 from .defense import DefenseGouvFrIE
 from .discovery import DiscoveryIE
 from .divxstage import DivxStageIE

youtube_dl/extractor/drtv.py

@@ -4,7 +4,7 @@ import re
 
 from .subtitles import SubtitlesInfoExtractor
 from .common import ExtractorError
-from..utils import parse_iso8601
+from ..utils import parse_iso8601
 
 
 class DRTVIE(SubtitlesInfoExtractor):