[英]Networkx AttributeError: 'DiGraph' object has no attribute '_succ' on inheritence
為什么會出現下面的代碼
import networkx as nx
class DiGraph(nx.DiGraph):
def __init__(self):
self.add_node("a")
super().add_node('a')
d = DiGraph()
產生屬性錯誤
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
/tmp/ipykernel_9038/3565896072.py in <module>
6 super().add_node('a')
7
----> 8 d = DiGraph()
/tmp/ipykernel_9038/3565896072.py in __init__(self)
3 class DiGraph(nx.DiGraph):
4 def __init__(self):
----> 5 self.add_node("a")
6 super().add_node('a')
7
/usr/lib/python3/dist-packages/networkx/classes/digraph.py in add_node(self, node_for_adding, **attr)
418 doesn't change on mutables.
419 """
--> 420 if node_for_adding not in self._succ:
421 self._succ[node_for_adding] = self.adjlist_inner_dict_factory()
422 self._pred[node_for_adding] = self.adjlist_inner_dict_factory()
AttributeError: 'DiGraph' object has no attribute '_succ'
My.networkx 版本是 2.4
import networkx as nx
class CusDiGraph(nx.DiGraph):
def __init__(self):
super(CusDiGraph, self).__init__()
self.add_node("a")
super().add_node('a')
d = CusDiGraph()
# plt
import matplotlib.pyplot as plt
pos=nx.spring_layout(d) # pos = nx.nx_agraph.graphviz_layout(G)
nx.draw_networkx(d,pos)
labels = nx.get_edge_attributes(d,'weight')
nx.draw_networkx_edge_labels(d,pos,edge_labels=labels)
只需更改 inheritance 關系即可。
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