def __setitem__(self, name, val):
        del self[name]
        self._headers.append((name, val))
Like `pretty` but print to stdout.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/django/core/servers/basehttp.py/Headers.__setitem__--crossover with--dataset/ETHPy150Open ipython/ipython-py3k/IPython/lib/pretty.py/pprint