$ python Python 2.7.8 (default, Jul 25 2014, 14:04:36) [GCC 4.8.3] on cygwin Type "help", "copyright", "credits" or "license" for more information. >>> import numpy Traceback (most recent call last): File "", line 1, in File "/usr/lib/python2.7/site-packages/numpy/__init__.py", line 137, in import add_newdocs File "/usr/lib/python2.7/site-packages/numpy/add_newdocs.py", line 9, in from numpy.lib import add_newdoc File "/usr/lib/python2.7/site-packages/numpy/lib/__init__.py", line 13, in from polynomial import * File "/usr/lib/python2.7/site-packages/numpy/lib/polynomial.py", line 17, in from numpy.linalg import eigvals, lstsq, inv File "/usr/lib/python2.7/site-packages/numpy/linalg/__init__.py", line 48, in from linalg import * File "/usr/lib/python2.7/site-packages/numpy/linalg/linalg.py", line 23, in from numpy.linalg import lapack_lite ImportError: No such file or directory >>> exit() $ python3 Python 3.2.5 (default, Jul 25 2014, 14:13:17) [GCC 4.8.3] on cygwin Type "help", "copyright", "credits" or "license" for more information. >>> import numpy Traceback (most recent call last): File "", line 1, in File "/usr/lib/python3.2/site-packages/numpy/__init__.py", line 137, in from . import add_newdocs File "/usr/lib/python3.2/site-packages/numpy/add_newdocs.py", line 9, in from numpy.lib import add_newdoc File "/usr/lib/python3.2/site-packages/numpy/lib/__init__.py", line 13, in from .polynomial import * File "/usr/lib/python3.2/site-packages/numpy/lib/polynomial.py", line 17, in from numpy.linalg import eigvals, lstsq, inv File "/usr/lib/python3.2/site-packages/numpy/linalg/__init__.py", line 48, in from .linalg import * File "/usr/lib/python3.2/site-packages/numpy/linalg/linalg.py", line 23, in from numpy.linalg import lapack_lite ImportError: No such file or directory >>> exit()