Hello,
The simple example works fine using __reduce__:
class MyError(Exception):
def __init__(self, arg):
self.arg = arg
def __reduce__(self):
return (MyError, (self.arg, ))
--
http://mail.python.org/mailman/listinfo/python-list
Thanks for your reply
On Wednesday, September 5, 2012 8:02:55 AM UTC+2, Dieter Maurer wrote:
>
> The pickle interface is actually more complex and there are several
>
> ways an object can ensure picklability. For example, there is
>
> also a "__reduce__" method. I suppose, that "Exception" def
Mathieu Courtois writes:
> Here is my example :
>
>
> import cPickle
>
> ParentClass = object # works
> ParentClass = Exception # does not
>
> class MyError(ParentClass):
> def __init__(self, arg):
> self.arg = arg
>
> def __getstate__(self):
> print '#DBG pass in get
On Tue, 04 Sep 2012 08:57:00 -0700, Mathieu Courtois wrote:
> Here is my example :
>
>
> import cPickle
>
> ParentClass = object # works
> ParentClass = Exception # does not
[...]
> 1. With ParentClass=object, it works as expected.
>
> 2. With ParentClass=Exception, __getstate__/__setstat
Here is my example :
import cPickle
ParentClass = object # works
ParentClass = Exception # does not
class MyError(ParentClass):
def __init__(self, arg):
self.arg = arg
def __getstate__(self):
print '#DBG pass in getstate'
odict = self.__dict__.copy()
