Doing:

sage: import numpy

on a fresh sage instalation:

  Platform (CPU) and Operating System: ubuntu 32 bit  LTS 10.04
  Exact version of Sage: 'Sage Version 4.8, Release Date: 2012-01-20' (32 
bit)

causes error:

/home/jpedro/sage/local/lib/python2.6/site-packages/numpy/lib/polynomial.py 
in <module>()
      9 import re
     10 import warnings
---> 11 import numpy.core.numeric as NX
     12 
     13 from numpy.core import isscalar, abs, finfo, atleast_1d, hstack

AttributeError: 'module' object has no attribute 'core'

ALSO: 

Doing 

  sage: import numpy.random 

causes error:

/home/jpedro/sage/local/lib/python2.6/site-packages/numpy/linalg/linalg.py 
in <module>()
     21         isfinite, size, finfo, absolute, log, exp
     22 from numpy.lib import triu
---> 23 from numpy.linalg import lapack_lite
     24 from numpy.matrixlib.defmatrix import matrix_power
     25 from numpy.compat import asbytes

ImportError: libgfortran.so.3: cannot open shared object file: No such file 
or directory

Pedro

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