Collecting youtube_dl==2014.05.31.4
Downloading youtube_dl-2014.05.31.4-py2.py3-none-any.whl (498kB)
Saved /tmp/tmpbvy2o5oa/youtube_dl-2014.05.31.4-py2.py3-none-any.whl
Skipping youtube-dl, due to already being wheel.