Sebastien, numpy arrays are picklable; so no need to register them with copy_reg. I believe the actual problem with xmlrpclib is that it uses the marshal protocol (only supports core builtin types), and not the pickle protocol.
On Tue, Sep 30, 2008 at 5:18 PM, Sebastien Binet <[EMAIL PROTECTED]> wrote: > Hi, > > [..snip..] > On Tuesday 30 September 2008 12:05:27 Robert Kern wrote: >> > doing something wrong. Is there a way to fix this? Is there another >> > approach that I should be using? >> >> The marshal module *only* handles builtin Python types. It explicitly >> does not handle anything from third parties like numpy. > > but you can use the copy_reg module ('copyreg' in py2.6) to register > pickling/unpickling functions to make 'pickle' able to handle user-types: > > ## test_pickling_numpy.py ## > import numpy > import copy_reg > import cPickle as pickle > > def from_string(s): > return numpy.fromstring(s) > > def to_string(o): > return from_string, (o.tostring(),) > > a = numpy.arange (10,dtype=float) > copy_reg.pickle (numpy.ndarray, to_string, from_string) > s = pickle.dumps (a) > b = pickle.loads (s) > assert (a==b, "pickling failed !") > ## EOF ## > > see for more informations: > http://effbot.org/librarybook/copy-reg.htm > > cheers, > sebastien. > -- > ################################### > # Dr. Sebastien Binet > # Lawrence Berkeley National Lab. > # 1 Cyclotron Road > # Berkeley, CA 94720 > ################################### > > _______________________________________________ > Numpy-discussion mailing list > Numpy-discussion@scipy.org > http://projects.scipy.org/mailman/listinfo/numpy-discussion > -- Lisandro Dalcín --------------- Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC) Instituto de Desarrollo Tecnológico para la Industria Química (INTEC) Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) PTLC - Güemes 3450, (3000) Santa Fe, Argentina Tel/Fax: +54-(0)342-451.1594 _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion