Bug 917380

Summary: [abrt] youtube-dl-2013.01.13-1.fc18: urllib2.py:1177:do_open:URLError: <urlopen error [Errno -2] Name or service not known>
Product: [Fedora] Fedora Reporter: Alexandre Moine <nobrakal>
Component: youtube-dlAssignee: Christopher Meng <i>
Status: CLOSED UPSTREAM QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 18CC: bugs.michael, metherid, opensource, sanjay.ankur
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Unspecified   
URL: https://github.com/rg3/youtube-dl/issues/1194
Whiteboard: abrt_hash:c58943f4a724d72a5d20f84ae6bad0bb60ebb60d
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-08-06 05:15:07 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
File: backtrace
none
File: core_backtrace
none
File: environ none

Description Alexandre Moine 2013-03-03 18:09:09 UTC 
Description of problem:
I specify an inexistant URL (http://abc), for test a script.
The command (youtube-dl http://abc)  return: 

Traceback (most recent call last):
  File "/usr/lib/python2.7/runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/usr/bin/youtube-dl/__main__.py", line 17, in <module>
  File "/usr/bin/youtube-dl/youtube_dl/__init__.py", line 494, in main
    
  File "/usr/bin/youtube-dl/youtube_dl/__init__.py", line 478, in _real_main
    
  File "/usr/bin/youtube-dl/youtube_dl/FileDownloader.py", line 503, in download
  File "/usr/bin/youtube-dl/youtube_dl/InfoExtractors.py", line 92, in extract
  File "/usr/bin/youtube-dl/youtube_dl/InfoExtractors.py", line 1301, in _real_extract
  File "/usr/bin/youtube-dl/youtube_dl/InfoExtractors.py", line 1290, in _test_redirect
  File "/usr/lib/python2.7/urllib2.py", line 400, in open
    response = self._open(req, data)
  File "/usr/lib/python2.7/urllib2.py", line 418, in _open
    '_open', req)
  File "/usr/lib/python2.7/urllib2.py", line 378, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.7/urllib2.py", line 1207, in http_open
    return self.do_open(httplib.HTTPConnection, req)
  File "/usr/lib/python2.7/urllib2.py", line 1177, in do_open
    raise URLError(err)
urllib2.URLError: <urlopen error [Errno -2] Name or service not known>

Thank's

Version-Release number of selected component:
youtube-dl-2013.01.13-1.fc18

Additional info:
cmdline:        python /usr/bin/youtube-dl -x --audio-format vorbis -t http://abc
dso_list:       python-libs-2.7.3-13.fc18.i686
executable:     /usr/bin/youtube-dl
kernel:         3.7.9-205.fc18.i686
uid:            1000

Truncated backtrace:
urllib2.py:1177:do_open:URLError: <urlopen error [Errno -2] Name or service not known>

Traceback (most recent call last):
  File "/usr/lib/python2.7/runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/usr/bin/youtube-dl/__main__.py", line 17, in <module>
    youtube_dl.main()
  File "/usr/bin/youtube-dl/youtube_dl/__init__.py", line 494, in main
    _real_main()
  File "/usr/bin/youtube-dl/youtube_dl/__init__.py", line 478, in _real_main
    retcode = fd.download(all_urls)
  File "/usr/bin/youtube-dl/youtube_dl/FileDownloader.py", line 503, in download
    videos = ie.extract(url)
  File "/usr/bin/youtube-dl/youtube_dl/InfoExtractors.py", line 92, in extract
    return self._real_extract(url)
  File "/usr/bin/youtube-dl/youtube_dl/InfoExtractors.py", line 1301, in _real_extract
    if self._test_redirect(url): return
  File "/usr/bin/youtube-dl/youtube_dl/InfoExtractors.py", line 1290, in _test_redirect
    response = opener.open(HeadRequest(url))
  File "/usr/lib/python2.7/urllib2.py", line 400, in open
    response = self._open(req, data)
  File "/usr/lib/python2.7/urllib2.py", line 418, in _open
    '_open', req)
  File "/usr/lib/python2.7/urllib2.py", line 378, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.7/urllib2.py", line 1207, in http_open
    return self.do_open(httplib.HTTPConnection, req)
  File "/usr/lib/python2.7/urllib2.py", line 1177, in do_open
    raise URLError(err)
URLError: <urlopen error [Errno -2] Name or service not known>

Local variables in innermost frame:
err: gaierror(-2, 'Name or service not known')
h: <httplib.HTTPConnection instance at 0x9413f0c>
self: <urllib2.HTTPHandler instance at 0x93261ac>
req: <youtube_dl.InfoExtractors.HeadRequest instance at 0x93261ec>
headers: {'Host': 'abc', 'Connection': 'close', 'User-Agent': 'Python-urllib/2.7'}
host: 'abc'
http_class: <class httplib.HTTPConnection at 0x924f0ec>
Comment 1 Alexandre Moine 2013-03-03 18:09:26 UTC 
Created attachment 704603 [details]
File: backtrace
Comment 2 Alexandre Moine 2013-03-03 18:09:53 UTC 
Created attachment 704604 [details]
File: core_backtrace
Comment 3 Alexandre Moine 2013-03-03 18:10:02 UTC 
Created attachment 704605 [details]
File: environ
Comment 4 Fedora Admin XMLRPC Client 2013-05-09 09:29:18 UTC 
This package has changed ownership in the Fedora Package Database.  Reassigning to the new owner of this component.
Comment 5 Christopher Meng 2013-05-09 09:35:47 UTC 
Hi,

Have you tried the newer version?

Does it still happen?
Comment 6 Michael Schwendt 2013-08-05 11:18:20 UTC 
Easily reproducible.

$ rpm -q youtube-dl
youtube-dl-2013.08.02-1.fc19.noarch
$ youtube-dl http://abc
Traceback (most recent call last):
 [...]
urllib2.URLError: <urlopen error [Errno -2] Name or service not known>
$

and ABRT kicks in.
Comment 7 Christopher Meng 2013-08-06 05:15:07 UTC 
Hi reporter, next time please try a valid URL to play with.
Comment 8 Michael Schwendt 2013-08-06 08:13:35 UTC 
> raise URLError(err)

Well, if you're in contact with upstream, typically one would catch such an exception and handle it properly instead of letting the Python program crash.

Note that this will return any time another user makes a typo or uses an URL that triggers the same exception.
Comment 9 Alexandre Moine 2013-08-06 14:50:33 UTC 
Hi, thank's for your reply.

I report this bug especially for developers, so they treat this exception. It isn't very friendly when, after a typo, the automatic bug reporting tool start.
Comment 10 Michael Schwendt 2013-08-06 17:14:15 UTC 
Exactly. Since I happened to have a github account and believe the youtube-dl developer might be interested in catching such exceptions, I've opened issue #1194 (should catch urllib2.URLError exceptions instead of crashing).