get google scholar using python

[রুদ্র ব্যাণার্জী]

If I am trying to access a google scholar search result using python, I
get the following error(403):
$ python
Python 2.7.3 (default, Jul 24 2012, 10:05:38) 
[GCC 4.7.0 20120507 (Red Hat 4.7.0-5)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from HTMLParser import HTMLParser
>>> import urllib2
response = urllib2.urlopen('http://scholar.google.co.uk/scholar?q=albert
+einstein%2B1905&btnG=&hl=en&as_sdt=0%2C5&as_sdtp=')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib64/python2.7/urllib2.py", line 126, in urlopen
    return _opener.open(url, data, timeout)
  File "/usr/lib64/python2.7/urllib2.py", line 406, in open
    response = meth(req, response)
  File "/usr/lib64/python2.7/urllib2.py", line 519, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/lib64/python2.7/urllib2.py", line 444, in error
    return self._call_chain(*args)
  File "/usr/lib64/python2.7/urllib2.py", line 378, in _call_chain
    result = func(*args)
  File "/usr/lib64/python2.7/urllib2.py", line 527, in
http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
urllib2.HTTPError: HTTP Error 403: Forbidden
>>> 

Will you kindly explain me the way to get rid of this?