[youtube] Test video fails in python 3

[jaimeMF]

Since a612753, the first test video fails:

$youtube-dl test:youtube
[debug] System config: []
[debug] User config: ['--keep-video', '--write-info-json', '--write-thumbnail', '--verbose']
[debug] Command-line args: ['test:youtube']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2014.04.01.2
[debug] Git HEAD: a612753
[debug] Python version 3.4.0 - Darwin-13.1.0-x86_64-i386-64bit
[debug] Proxy map: {}
[TestURL] Test URL: http://www.youtube.com/watch?v=BaW_jenozKc
[youtube] Setting language
[youtube] BaW_jenozKc: Downloading webpage
[youtube] BaW_jenozKc: Downloading video info webpage
[youtube] BaW_jenozKc: Extracting video information
Traceback (most recent call last):
  File "~/Developer/proyectos/youtube-dl/youtube-dl/y-dl", line 6, in <module>
    youtube_dl.main()
  File "~/Developer/proyectos/youtube-dl/youtube-dl/youtube_dl/__init__.py", line 836, in main
    _real_main(argv)
  File "~/Developer/proyectos/youtube-dl/youtube-dl/youtube_dl/__init__.py", line 826, in _real_main
    retcode = ydl.download(all_urls)
  File "~/Developer/proyectos/youtube-dl/youtube-dl/youtube_dl/YoutubeDL.py", line 1025, in download
    self.extract_info(url)
  File "~/Developer/proyectos/youtube-dl/youtube-dl/youtube_dl/YoutubeDL.py", line 522, in extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "~/Developer/proyectos/youtube-dl/youtube-dl/youtube_dl/YoutubeDL.py", line 566, in process_ie_result
    extra_info=extra_info)
  File "~/Developer/proyectos/youtube-dl/youtube-dl/youtube_dl/YoutubeDL.py", line 511, in extract_info
    ie_result = ie.extract(url)
  File "~/Developer/proyectos/youtube-dl/youtube-dl/youtube_dl/extractor/common.py", line 161, in extract
    return self._real_extract(url)
  File "~/Developer/proyectos/youtube-dl/youtube-dl/youtube_dl/extractor/youtube.py", line 1192, in _real_extract
    json_code = uppercase_escape(mobj.group(1))
  File "~/Developer/proyectos/youtube-dl/youtube-dl/youtube_dl/utils.py", line 1268, in uppercase_escape
    lambda m: m.group(0).decode('unicode-escape'), s)
  File "/usr/local/Cellar/python3/3.4.0/Frameworks/Python.framework/Versions/3.4/lib/python3.4/re.py", line 175, in sub
    return _compile(pattern, flags).sub(repl, string, count)
  File "~/Developer/proyectos/youtube-dl/youtube-dl/youtube_dl/utils.py", line 1268, in <lambda>
    lambda m: m.group(0).decode('unicode-escape'), s)
AttributeError: 'str' object has no attribute 'decode'

But other test videos work.
Pinging @phihag.

[phihag]

Thank you very much for notifying me, I totally broke this. As usual, I blame missing tests. Fixed (and of course, added specific tests).

[jaimeMF]

Thanks for looking into it.