def __delitem__(self, key, dict_delitem=dict.__delitem__):
<EOL>dict_delitem(self, key)<EOL>link_prev, link_next, _ = self.__map.pop(key)<EOL>link_prev[<NUM_LIT:1>] = link_next                        <EOL>link_next[<NUM_LIT:0>] = link_prev                        <EOL>
od.__delitem__(y) <==> del od[y]