Url with %20

[nodtem66]

Input:
http://gist-it.appspot.com/https://github.com/nodtem66/EGBE443-Group2/blob/master/project5/Video%20histrogram/video002.m
Output:

<pre>
Traceback (most recent call last):
  File &quot;/base/data/home/runtimes/python/python_lib/versions/1/google/appengine/ext/webapp/_webapp25.py&quot;, line 714, in __call__
    handler.get(*groups)
  File &quot;/base/data/home/apps/gist-it/4.365591476556138162/app.py&quot;, line 82, in get
    return gist_it_appengine.dispatch_gist_it( self, location )
  File &quot;pyl/gist_it/appengine.py&quot;, line 104, in dispatch_gist_it
    response = urlfetch.fetch( gist.raw_url, headers = { 'Cache-Control': 'max-age=300' } )
  File &quot;/base/data/home/runtimes/python/python_lib/versions/1/google/appengine/api/urlfetch.py&quot;, line 270, in fetch
    return rpc.get_result()
  File &quot;/base/data/home/runtimes/python/python_lib/versions/1/google/appengine/api/apiproxy_stub_map.py&quot;, line 612, in get_result
    return self.__get_result_hook(self)
  File &quot;/base/data/home/runtimes/python/python_lib/versions/1/google/appengine/api/urlfetch.py&quot;, line 413, in _get_fetch_result
    raise DownloadError(&quot;Unable to fetch URL: &quot; + url + error_detail)
DownloadError: Unable to fetch URL: https://github.com/nodtem66/EGBE443-Group2/raw/master/project5/Video histrogram/video002.m
</pre>