fix for brightcove extractor

[lindi2]

python -m youtube_dl http://www.nature.com/news/video-fish-leaps-to-catch-birds-on-the-wing-1.14496

starts working with the following patch:

diff --git a/youtube_dl/extractor/brightcove.py b/youtube_dl/extractor/brightcove.py
index 4ba3f7c..869b0a1 100644
--- a/youtube_dl/extractor/brightcove.py
+++ b/youtube_dl/extractor/brightcove.py
@@ -86,7 +86,7 @@ class BrightcoveIE(InfoExtractor):

         object_doc = xml.etree.ElementTree.fromstring(object_str)
         assert 'BrightcoveExperience' in object_doc.attrib['class']
-        params = {'flashID': object_doc.attrib['id'],
+        params = {
                   'playerID': find_xpath_attr(object_doc, './param', 'name', 'playerID').attrib['value'],
                   }
         def find_param(name):

I don't unfortunately have time to submit a proper patch but thought that this might still be useful. In case somebody is googling for this the original failure message is

$ youtube-dl http://www.nature.com/news/video-fish-leaps-to-catch-birds-on-the-wing-1.14496
WARNING: Falling back on generic information extractor.
[generic] video-fish-leaps-to-catch-birds-on-the-wing-1.14496: Downloading webpage
[generic] video-fish-leaps-to-catch-birds-on-the-wing-1.14496: Extracting information
Traceback (most recent call last):
  File "/usr/bin/youtube-dl", line 9, in <module>
    load_entry_point('youtube-dl==2013.12.04', 'console_scripts', 'youtube-dl')()
  File "/usr/lib/python2.7/dist-packages/youtube_dl/__init__.py", line 726, in main
    _real_main(argv)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/__init__.py", line 716, in _real_main
    retcode = ydl.download(all_urls)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 806, in download
    self.extract_info(url)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 429, in extract_info
    ie_result = ie.extract(url)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 131, in extract
    return self._real_extract(url)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/generic.py", line 176, in _real_extract
    bc_url = BrightcoveIE._extract_brightcove_url(webpage)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/brightcove.py", line 106, in _extract_brightcove_url
    return cls._build_brighcove_url(m_brightcove.group())
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/brightcove.py", line 75, in _build_brighcove_url
    params = {'flashID': object_doc.attrib['id'],
KeyError: 'id'

[jaimeMF]

Thanks for the report and specially for looking into a fix for the problem!