Alexandre Vassalotti <alexan...@peadrop.com> added the comment:
I agree with Nick.
And if you really want to, you could hack a Pickler subclass to support
NoneType:
import io
import pickle
class XPickler(pickle.Pickler):
def persistent_id(self, obj):
if obj is type(None):
return "NoneType"
return None
class XUnpickler(pickle.Unpickler):
def persistent_load(self, persistent_id):
if persistent_id == "NoneType":
return type(None)
def dumps(obj):
f = io.BytesIO()
XPickler(f).dump(obj)
return f.getvalue()
def loads(s):
return XUnpickler(io.BytesIO(s)).load()
Not super elegant, but it works:
>>> loads(dumps([type(None), None]))
[<type 'NoneType'>, None]
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<http://bugs.python.org/issue6477>
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