def __delitem__(self, key, dict_delitem=dict.__delitem__):
        # Deleting an existing item uses self.__map to find the link which is
        # then removed by updating the links in the predecessor and successor
        # nodes.
        dict_delitem(self, key)
        link_prev, link_next, key = self.__map.pop(key)
        link_prev[1] = link_next
        link_next[0] = link_prev
od.__delitem__(y) <==> del od[y]
dataset/ETHPy150Open PythonCharmers/python-future/docs/3rd-party-py3k-compat-code/pandas_py3k.py/_OrderedDict.__delitem__