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Hello,All.
Error in appex script, can not be eliminated.
Please give me advice .
As the goal, From the open page (Internet), it is what you want to download and save images .
Thanks.

download_image.py

http://news.goo.ne.jp/topstories/nation/379/8badd8f273cceb69bac12a775d978555.html?isp=00002
//u.xgoo.jp/img/goo.png
Traceback (most recent call last):
  File "/private/var/mobile/Containers/Shared/AppGroup/1920E896-A5A8-4781-B249-EE90E9CC5C44/Documents/download_image.py", line 43, in <module>
    main()
  File "/private/var/mobile/Containers/Shared/AppGroup/1920E896-A5A8-4781-B249-EE90E9CC5C44/Documents/download_image.py", line 40, in main
    download(img_url)
  File "/private/var/mobile/Containers/Shared/AppGroup/1920E896-A5A8-4781-B249-EE90E9CC5C44/Documents/download_image.py", line 13, in download
    img = urllib2.urlopen(url)
  File "/private/var/mobile/Containers/Bundle/Application/BA72C9F4-3A16-4501-889D-1505A8733CDE/Pythonista.app/PlugIns/com.omz-software.Pythonista.PythonistaAction.appex/pylib/urllib2.py", line 128, in urlopen
    return _opener.open(url, data, timeout)
  File "/private/var/mobile/Containers/Bundle/Application/BA72C9F4-3A16-4501-889D-1505A8733CDE/Pythonista.app/PlugIns/com.omz-software.Pythonista.PythonistaAction.appex/pylib/urllib2.py", line 397, in open
    protocol = req.get_type()
  File "/private/var/mobile/Containers/Bundle/Application/BA72C9F4-3A16-4501-889D-1505A8733CDE/Pythonista.app/PlugIns/com.omz-software.Pythonista.PythonistaAction.appex/pylib/urllib2.py", line 259, in get_type
    raise ValueError, "unknown url type: %s" % self.__original
ValueError: unknown url type: //u.xgoo.jp/img/goo.png

Haven't tried it, but I think something like this should work:

#[l.36] get image's URL
        img_url = link.get('src')
        if img_url.startswith('//'):
            img_url = 'http:' + img_url
        # [...]

@omz
Thank you , I was resolved ! (^^/
Always , I received a precise advice , we are surprised .
A new version(Pythonista) of the provision , we are looking forward .