Fixed an error that was preventing some errors from raising the correct exceptions.
Fixed an error that was preventing some errors from raising the correct exceptions.

briancurtin/pyrax,opsdisk/pyrax,roelvv/pyrax,ddaeschler/pyrax,EdLeafe/pyrax,sivel/pyrax,naemono/pyrax,rackerlabs/heat-pyrax,0dataloss/pyrax,mandx/pyrax,rackspace/pyrax,vikomall/pyrax,pratikmallya/pyrax