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-rw-r--r--youtube_dl/extractor/__init__.py1
-rw-r--r--youtube_dl/extractor/commonmistakes.py29
2 files changed, 30 insertions, 0 deletions
diff --git a/youtube_dl/extractor/__init__.py b/youtube_dl/extractor/__init__.py
index 6c5827f88..a95de54cb 100644
--- a/youtube_dl/extractor/__init__.py
+++ b/youtube_dl/extractor/__init__.py
@@ -71,6 +71,7 @@ from .cnn import (
from .collegehumor import CollegeHumorIE
from .comedycentral import ComedyCentralIE, ComedyCentralShowsIE
from .comcarcoff import ComCarCoffIE
+from .commonmistakes import CommonMistakesIE
from .condenast import CondeNastIE
from .cracked import CrackedIE
from .criterion import CriterionIE
diff --git a/youtube_dl/extractor/commonmistakes.py b/youtube_dl/extractor/commonmistakes.py
new file mode 100644
index 000000000..75c06903f
--- /dev/null
+++ b/youtube_dl/extractor/commonmistakes.py
@@ -0,0 +1,29 @@
+from __future__ import unicode_literals
+
+from .common import InfoExtractor
+from ..utils import ExtractorError
+
+
+class CommonMistakesIE(InfoExtractor):
+ IE_DESC = False # Do not list
+ _VALID_URL = r'''(?x)
+ (?:url|URL)
+ '''
+
+ _TESTS = [{
+ 'url': 'url',
+ 'only_matching': True,
+ }, {
+ 'url': 'URL',
+ 'only_matching': True,
+ }]
+
+ def _real_extract(self, url):
+ msg = (
+ 'You\'ve asked youtube-dl to download the URL "%s". '
+ 'That doesn\'t make any sense. '
+ 'Simply remove the parameter in your command or configuration.'
+ ) % url
+ if self._downloader.params.get('verbose'):
+ msg += ' Add -v to the command line to see what arguments and configuration youtube-dl got.'
+ raise ExtractorError(msg, expected=True)