title: Numpy install under Ubuntu (12.04) causes Python ImportError
body: <p>Under Ubuntu (12.04), installed python (2.7.5) with numpy (1.8rc2) using openblas into own environment (/din).  The numpy site.cfg file is configured to point to openblas, and compiled as:</p>
  
  <pre><code>$ python setup.py build
  $ sudo python setup.py install --prefix=/home/Programs/din/local
  
  $ python
  
  Python 2.7.5 (default, Oct 24 2013, 15:33:08)
  [GCC 4.6.3] on linux2
  Type "help", "copyright", "credits" or "license" for more information.
  
  &gt;&gt;&gt; import numpy
  
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
    File "/home/Programs/din/local/lib/python2.7/site-packages/numpy/__init__.py", line 137, in &lt;module&gt;
      import add_newdocs
    File "/home/Programs/din/local/lib/python2.7/site-packages/numpy/add_newdocs.py", line 9, in &lt;module&gt;
      from numpy.lib import add_newdoc
    File "/home/Programs/din/local/lib/python2.7/site-packages/numpy/lib/__init__.py", line 4, in &lt;module&gt;
      from type_check import *
    File "/home/Programs/din/local/lib/python2.7/site-packages/numpy/lib/type_check.py", line 8, in &lt;module&gt;
      import numpy.core.numeric as _nx
    File "/home/Programs/din/local/lib/python2.7/site-packages/numpy/core/__init__.py", line 5, in &lt;module&gt;
      import multiarray
  ImportError: 
  "/home/Programs/din/local/lib/python2.7/site-packages/numpy/core/multiarray.so: undefined symbol: ERR_peek_last_error
  </code></pre>
  
  <p>Cython, gevent, and other python packages have all been installed successfully into /din but not numpy.  The $PATH and python sys.path have been checked and all looks good.</p>
  
  <p>Does anyone have ideas to try out?</p>