Set edge capacity. Will also update other vertex.reverse. >>> class myvertex(ReverseEdgeMixin, WVertex): ... pass >>> g = Graph(VertexType=myvertex) >>> g[1][2] = 3 >>> g[1], g[2].reverse ({2: 3}, {1: 3})
(self, tail, value)
| 225 | return sum(self.reverse.itervalues()) |
| 226 | |
| 227 | def __setitem__(self, tail, value): |
| 228 | """Set edge capacity. Will also update other vertex.reverse. |
| 229 | |
| 230 | >>> class myvertex(ReverseEdgeMixin, WVertex): |
| 231 | ... pass |
| 232 | >>> g = Graph(VertexType=myvertex) |
| 233 | >>> g[1][2] = 3 |
| 234 | >>> g[1], g[2].reverse |
| 235 | ({2: 3}, {1: 3}) |
| 236 | """ |
| 237 | #print tail, value |
| 238 | super(ReverseEdgeMixin, self).__setitem__(tail, value) |
| 239 | value = self[tail] #value may have been modified by other classes |
| 240 | if tail != self._id: #creates tail vertex so check value first |
| 241 | self._graph[tail].reverse[self._id] = value |
| 242 | #print self._graph[tail].reverse |
| 243 | else: |
| 244 | self.reverse[self._id] = value |
| 245 | |
| 246 | def __delitem__(self, tail): |
| 247 | """Removes tail from self and self._id from tail.reverse. |
nothing calls this directly
no test coverage detected