Description of problem:
El problema suscitó intentando anular una descarga.

Version-Release number of selected component:
youtube-dl-2014.12.10.3-1.fc21

Additional info:
reporter:       libreport-2.3.0
cmdline:        python /usr/bin/youtube-dl -r 30K https://www.youtube.com/watch?v=Vg7fz_oNdTQ
dso_list:       python-libs-2.7.8-7.fc21.x86_64
executable:     /usr/bin/youtube-dl
kernel:         3.17.6-300.fc21.x86_64
runlevel:       N 5
type:           Python
uid:            1000

Truncated backtrace:
utils.py:884:write_string:IOError: [Errno 5] Input/output error

Traceback (most recent call last):
  File "/usr/lib64/python2.7/runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib64/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/usr/bin/youtube-dl/__main__.py", line 19, in <module>
    youtube_dl.main()
  File "/usr/bin/youtube-dl/youtube_dl/__init__.py", line 361, in main
    _real_main(argv)
  File "/usr/bin/youtube-dl/youtube_dl/__init__.py", line 351, in _real_main
    retcode = ydl.download(all_urls)
  File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1168, in download
    self.report_error('unable to download video')
  File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 478, in report_error
    self.trouble(error_message, tb)
  File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 431, in trouble
    self.to_stderr(message)
  File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 385, in to_stderr
    self._write_string(output, self._err_file)
  File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 364, in _write_string
    write_string(s, out=out, encoding=self.params.get('encoding'))
  File "/usr/bin/youtube-dl/youtube_dl/utils.py", line 884, in write_string
    out.write(byt)
IOError: [Errno 5] Input/output error

Local variables in innermost frame:
byt: 'ERROR: unable to download video\n'
out: <open file '<stderr>', mode 'w' at 0x7f4da61a01e0>
s: u'ERROR: unable to download video\n'
encoding: None