Cannot import PyBrain after installation on OSX 10.6.8
Question: Check the python version

    
    
    ✈  python --version
    Python 2.7.2
    

List the packages within the `virtualenv`

    
    
    ✈  pip freeze
    PyBrain==0.3
    numpy==1.6.1
    scipy==0.10.1
    wsgiref==0.1.2
    

Load the intepreter

    
    
    >>> import numpy
    >>> print numpy.__version__
    1.6.1
    >>> import scipy
    >>> print scipy.__version__
    0.10.1
    >>> import pybrain
     Traceback (most recent call last):
     File "<stdin>", line 1, in <module>
     File "/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/pybrain/__init__.py", line 1, in <module>
    from structure.__init__ import *
      File "/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/pybrain/structure/__init__.py", line 2, in <module>
    from modules.__init__ import *
      File "/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/pybrain/structure/modules/__init__.py", line 2, in <module>
    from gate import GateLayer, DoubleGateLayer, MultiplicationLayer, SwitchLayer
      File "/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/pybrain/structure/modules/gate.py", line 11, in <module>
    from pybrain.tools.functions import sigmoid, sigmoidPrime
      File "/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/pybrain/tools/functions.py", line 4, in <module>
    from scipy.linalg import inv, det, svd
      File "/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/scipy/linalg/__init__.py", line 116, in <module>
    from basic import *
      File "/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/scipy/linalg/basic.py", line 14, in <module>
    from scipy.linalg import calc_lwork
    ImportError: dlopen(/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/scipy/linalg/calc_lwork.so, 2): Symbol not found: __gfortran_concat_string
      Referenced from: /Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/scipy/linalg/calc_lwork.so
      Expected in: dynamic lookup
    


Answer: 
    ImportError: dlopen(/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/scipy/linalg/calc_lwork.so, 2): Symbol not found: __gfortran_concat_string
    

I'm not sure - as I haven't messed with this library before - but do you need
to compile one of those packages with Fortran support? When I installed
numpy/scipy on my Mac up at work, I had to install
[GFortran](http://gcc.gnu.org/wiki/GFortran) so all the bindings and
underpinnings of the frameworks would be set correctly. Perhaps that's why
scipy is dying on you.

