[Tutor] cannot pickle instancemethod objects

[hok kakada]

នៅថ្ងៃ ពុធ 13 មិថុនា 2007 19:09, Kent Johnson បាន​សរសេរ​ថា ៖
> hok kakada wrote:
> >> What kind of object is matcher? Does it have any attributes that are
> >> functions? (Not methods you defined for the class, but functions or
> >> methods that you assign to attributes of self.)
> >
> > Actually, I use the translate-toolkit from
> > http://translate.sourceforge.net/snapshots/translate-toolkit-1.0.1rc1/
> > in translate/search/match.py:
> >         if comparer is None:
> >             comparer = lshtein.LevenshteinComparer(max_length)
> >
>  >         self.comparer = comparer
> >
> > I just found the problem that it is because of the LevenshteinComparer.
> > Once I assign self.comparer = None, the I can dump the matcher
> > successfully. However, I still don't understand what could be wrong with
> > LevenshteinComparer.
>
> I think the problem is this code in LevenshteinComparer.__init__():
>
>          if Levenshtein:
>              self.distance = self.native_distance
>          else:
>              self.distance = self.python_distance
>
> which assigns an instance method to an instance attribute; this is the
> instancemethod that can't be pickled.
Ok...but how can we deal with it?

Kind Regards,
da