<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def post(self, request):
 """ Create a client, store it in the user's session and redirect the user to the API provider to authorize our app and permissions. """

        request.session['next'] = self.get_next(request)
        client = self.get_client()()
        request.session[self.get_client().get_session_key()] = client
        url = client.get_redirect_url(request=request)
        logger.debug("Redirecting to %s", url)
        try:
            return HttpResponseRedirect(url)
        except OAuthError, error:
            return self.error_to_response(request, {'error': error})
        except socket.timeout:
            return self.error_to_response(request, {'error': 
                _('Could not connect to service (timed out)')})