def __delitem__(self, target):
        "Delete edge from fromNode to target"
        try:
            self.dictClass.__delitem__(self, target)
        except __HOLE__: # GENERATE A MORE INFORMATIVE ERROR MESSAGE
            raise KeyError('No edge from node to target')
dataset/ETHPy150Open cjlee112/pygr/pygr/mapping.py/dictEdge.__delitem__