title: "no suitable image found" error when using numpy
body: <p>I tried to use NumPy in Terminal, but the system gave me an error message like this:</p>
  
  <blockquote>
    <p>Traceback (most recent call last):   File "", line 1, in
       File
    "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/<strong>init</strong>.py",
    line 137, in 
        import add_newdocs   File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/add_newdocs.py",
    line 9, in 
        from numpy.lib import add_newdoc   File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/lib/<strong>init</strong>.py",
    line 4, in 
        from type_check import *   File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/lib/type_check.py",
    line 8, in 
        import numpy.core.numeric as _nx   File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/<strong>init</strong>.py",
    line 5, in 
        import multiarray </p>
    
    <p>ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/multiarray.so,
    2): no suitable image found.  Did find:
      /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/multiarray.so:
    no matching architecture in universal wrapper</p>
  </blockquote>
  
  <p>How can I fix it? I installed Python 2.7.3 from official source and my machine is running OSX 10.7.4.</p>