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Also when I import scipy.optimize I have the following error. Could easy_install be using the solaris CC compiler? Would this cause this problem? In [6]: import scipy.optimize --------------------------------------------------------------------------- ImportError Traceback (most recent call last) /usr/local/lib/python2.5/site-packages/<ipython console> in <module>() /usr/local/lib/python2.5/site-packages/scipy-0.6.0-py2.5-solaris-2.10-sun4u.egg/scipy/optimize/__init__.py in <module>() 9 from zeros import * 10 from anneal import * ---> 11 from lbfgsb import fmin_l_bfgs_b global lbfgsb = undefined global fmin_l_bfgs_b = undefined 12 from tnc import fmin_tnc 13 from cobyla import fmin_cobyla /usr/local/lib/python2.5/site-packages/scipy-0.6.0-py2.5-solaris-2.10-sun4u.egg/scipy/optimize/lbfgsb.py in <module>() 28 29 from numpy import zeros, float64, array, int32 ---> 30 import _lbfgsb global _lbfgsb = undefined 31 import optimize 32 ImportError: ld.so.1: python: fatal: relocation error: file /usr/local/lib/python2.5/site-packages/scipy-0.6.0-py2.5-solaris-2.10-sun4u.egg/scipy/optimize/_lbfgsb.so: symbol etime_: referenced symbol not found