To start with, this is awesome. Thank you so much!
Next question: What if I want MyPair to have a zero-argument
constructor? (Well, besides self, that is). If I do:
class MyPair(pair):
def __init__(self):
pass
then I get "TypeError: ('__init__() takes exactly 1 argument (3 given)".
Does this mean that derived types must always have constructors with the
same number (or more) than their base type?
Thanks,
...Eric
On Tue, 2008-05-27 at 15:47 -0300, Lisandro Dalcin wrote:
> Well, I admit that the Python docs are a bit hard to follow, but let's
> solve your issue. Look at the attached files,
>
> * mod.pyx: a simple 'cdef' class pair, like the C++ one
> * test.py: a full test, all pickle protocols, includes subclassing
> * cy2py: my lovely distutils based script for the process *.pyx->*.so
> (no need of makefiles, improvements welcome!)
> run like $ python cy2py mod.pyx . This way, you get mod.so.
>
> If you find this code useful, you can donate some dollars ... Just a
> joke! But if you can make it a really good example, It would be great
> to have this included in Cython docs, in order to help other doing
> this, I just do not have the time.
>
> Enjoy!
>
>
> On 5/27/08, Eric Jonas <[EMAIL PROTECTED]> wrote:
> >
> > > But there is definitelly better ways. You sould look at the docs of
> > > pickle module, and particularly to the __getinitargs__/__getnewargs__
> > > and the __getstate__/__setstate__ stuff. Iff I were to implement
> > > pickle protocol, I would explicitely use that.
> >
> >
> >
> > The python pickle docs, which I've been struggling to understand, seem
> > to suggest that __reduce__ is necessary for all extensions, or to use
> > the copy_reg module. But it seems that __getstate__/__setstate__ are not
> > applicable for c-extensions. Is this correct?
> >
> > Thanks,
> >
> > ...Eric
> >
> >
> >
> > _______________________________________________
> > Cython-dev mailing list
> > [email protected]
> > http://codespeak.net/mailman/listinfo/cython-dev
> >
>
>
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