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J'essaie de décaper une instance de classe contenant deux listes d'autres instances. Les instances des deux listes ont des attributs qui renvoient des instances les unes aux autres. Voici les classes.python pickle.dumps AssertionError
import pickle
from copy import copy
class Graph:
def __init__(self):
self.vertices = {}
self.edges = set()
def __repr__(self):
return "\n".join(map(str, sorted(self.vertices, key=lambda v:v.id)))
class Edge:
def __init__(self, vfrom, vto):
self.vfrom = vfrom
self.vto = vto
def __hash__(self):
return hash((self.vto, self.vfrom))
def __repr__(self):
return str(self.vto.id)
def __getstate__(self):
vfrom = copy(self.vfrom)
vfrom.del_outgoing(self)
vto = copy(self.vto)
vto.del_incoming(self)
self.__dict__.update({"vfrom":vfrom, "vto":vto, })
return self.__dict__
def __setstate__(self, state):
self.__dict__.update(state)
self.__dict__["vfrom"].add_outgoing(self)
self.__dict__["vto"].add_incoming(self)
class Vertex:
def __init__(self, id):
self.id = id
self.incoming = set()
self.outgoing = set()
def __repr__(self):
return "Vertex %d -> %s"%(self.id, ", ".join(map(str, self.outgoing)))
def __hash__(self):
return hash(self.id)
def add_incoming(self, edge):
if not edge in self.incoming:
self.incoming.add(edge)
def add_outgoing(self, edge):
if not edge in self.outgoing:
self.outgoing.add(edge)
def del_incoming(self, edge):
self.incoming.discard(edge)
def del_outgoing(self, edge):
self.outgoing.discard(edge)
J'ai reçu une erreur AssertionError lorsque j'ai décapé un graphe simple comme suit.
>>> v0 = Vertex(0)
>>> v1 = Vertex(1)
>>> e0to1 = Edge(v0, v1)
>>> v0.add_outgoing(e0to1)
>>> v1.add_incoming(e0to1)
>>> g = Graph()
>>> g.vertices[v0] = v0
>>> g.vertices[v1] = v1
>>> g.edges.add(e0to1)
>>> g.edges.add(e0to1)
>>> v2 = Vertex(2)
>>> e0to2 = Edge(v0, v2)
>>> v0.add_outgoing(e0to2)
>>> v2.add_incoming(e0to2)
>>> g.vertices[v2] = v2
>>> g.edges.add(e0to2)
>>>
>>> print g
Vertex 0 -> 2, 1
Vertex 1 ->
Vertex 2 ->
>>> p = pickle.dumps(g)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.6/pickle.py", line 1366, in dumps
Pickler(file, protocol).dump(obj)
File "/usr/lib/python2.6/pickle.py", line 224, in dump
self.save(obj)
File "/usr/lib/python2.6/pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "/usr/lib/python2.6/pickle.py", line 725, in save_inst
save(stuff)
File "/usr/lib/python2.6/pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "/usr/lib/python2.6/pickle.py", line 649, in save_dict
self._batch_setitems(obj.iteritems())
File "/usr/lib/python2.6/pickle.py", line 663, in _batch_setitems
save(v)
File "/usr/lib/python2.6/pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "/usr/lib/python2.6/pickle.py", line 401, in save_reduce
save(args)
File "/usr/lib/python2.6/pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "/usr/lib/python2.6/pickle.py", line 562, in save_tuple
save(element)
File "/usr/lib/python2.6/pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "/usr/lib/python2.6/pickle.py", line 600, in save_list
self._batch_appends(iter(obj))
File "/usr/lib/python2.6/pickle.py", line 615, in _batch_appends
save(x)
File "/usr/lib/python2.6/pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "/usr/lib/python2.6/pickle.py", line 725, in save_inst
save(stuff)
File "/usr/lib/python2.6/pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "/usr/lib/python2.6/pickle.py", line 649, in save_dict
self._batch_setitems(obj.iteritems())
File "/usr/lib/python2.6/pickle.py", line 663, in _batch_setitems
save(v)
File "/usr/lib/python2.6/pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "/usr/lib/python2.6/pickle.py", line 725, in save_inst
save(stuff)
File "/usr/lib/python2.6/pickle.py", line 286, in save
f(self, obj) # Call unbound method with explicit self
File "/usr/lib/python2.6/pickle.py", line 649, in save_dict
self._batch_setitems(obj.iteritems())
File "/usr/lib/python2.6/pickle.py", line 663, in _batch_setitems
save(v)
File "/usr/lib/python2.6/pickle.py", line 331, in save
self.save_reduce(obj=obj, *rv)
File "/usr/lib/python2.6/pickle.py", line 405, in save_reduce
self.memoize(obj)
File "/usr/lib/python2.6/pickle.py", line 244, in memoize
assert id(obj) not in self.memo
AssertionError
J'ai travaillé lorsque la version 2 a été supprimée.
>>> v0 = Vertex(0)
>>> v1 = Vertex(1)
>>> e0to1 = Edge(v0, v1)
>>> v0.outgoing.add(e0to1)
>>> v1.incoming.add(e0to1)
>>> g = Graph()
>>> g.vertices[v0] = v0
>>> g.vertices[v1] = v1
>>> g.edges.add(e0to1)
>>> g.edges.add(e0to1)
>>> import cPickle as pickle
>>> p = pickle.dumps(g)
>>> print pickle.loads(p)
Vertex 0 -> 1
Vertex 1 ->
Avez-vous une idée?