def __delitem__(self, target):
        "Delete edge from fromNode to target"
        try:
            del self.graph.d[self.fromNode][self.graph.pack_target(target)]
        except __HOLE__: # GENERATE A MORE INFORMATIVE ERROR MESSAGE
            raise KeyError('No edge from node to target')

    ######### CONVENIENCE METHODS THAT USE THE ACCESS METHODS ABOVE
dataset/ETHPy150Open cjlee112/pygr/pygr/mapping.py/IDNodeDict.__delitem__