[NumPy-Tickets] [NumPy] #1505: load() yields corrupted/incorrect data

[NumPy Trac]

#1505: load() yields corrupted/incorrect data
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  Reporter:  RRosario    |       Owner:  somebody                      
      Type:  defect      |      Status:  closed                        
  Priority:  high        |   Milestone:  1.6.0                         
 Component:  numpy.core  |     Version:  1.4.0                         
Resolution:  worksforme  |    Keywords:  load save corrupt inconsistent
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Comment(by andreh):

 Replying to [comment:6 andreh]:
 > I discovered a similar problem with coo_matrix : {{{shape}}} is not the
 same after serialization .
 >
 > Replying to [comment:3 pv]:
 > > Works for me.
 > > {{{
 > > >>> import numpy as np
 > > >>> import scipy.sparse as sparse
 > > >>> x = sparse.lil_matrix((395000,395000))
 > > >>> x[:,10] = 1
 > > >>> x[10,:] = 1
 > > >>> x = x.tocsc()
 > > >>> np.save('dump.npy', x.indices)
 > > >>> y = np.load('dump.npy')
 > > >>> np.allclose(x.indices, y)
 > > True
 > > }}}
 >
 More information:

 {{{
 x.__class__
 }}}
 is
 {{{
 <class 'scipy.sparse.csc.csc_matrix'>
 }}}
 while
 {{{
 y.__class__
 }}}
 is
 {{{
 <type 'numpy.ndarray'>
 }}}

 i.e. the class is altered by serialization/serialization.

-- 
Ticket URL: <http://projects.scipy.org/numpy/ticket/1505#comment:7>
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