title: urllib2 HTTP Error 400: Bad Request
body: <p>I have a piece of code like this </p>
  
  <pre><code>host = 'http://www.bing.com/search?q=%s&amp;go=&amp;qs=n&amp;sk=&amp;sc=8-13&amp;first=%s' % (query, page)
  req = urllib2.Request(host)
  req.add_header('User-Agent', User_Agent)
  response = urllib2.urlopen(req)
  </code></pre>
  
  <p>and when I input a query greater than one word like "the dog" i get the following error.</p>
  
  <pre><code>response = urllib2.urlopen(req)
  File "/usr/lib/python2.7/urllib2.py", line 126, in urlopen
  return _opener.open(url, data, timeout)
  File "/usr/lib/python2.7/urllib2.py", line 400, in open
  response = meth(req, response)
  File "/usr/lib/python2.7/urllib2.py", line 513, in http_response
  'http', request, response, code, msg, hdrs)
  File "/usr/lib/python2.7/urllib2.py", line 438, in error
  return self._call_chain(*args)
  File "/usr/lib/python2.7/urllib2.py", line 372, in _call_chain
  result = func(*args)
  File "/usr/lib/python2.7/urllib2.py", line 521, in http_error_default
  raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
  urllib2.HTTPError: HTTP Error 400: Bad Request
  </code></pre>
  
  <p>Can anyone point out what im doing wrong?
  Thanks in advance.</p>