centos中virtualenv安装scipy

由于项目须要scipy，在virtualenv中安装scipy，参考官方安装说明http://www.scipy.org/scipylib/building/linux.html，须要numpy,pip install numpy很简单安装好了，可是pip install scipy时一直报错：

numpy.distutils.system_info.BlasNotFoundError: Blas (http://www.netlib.org/blas/) libraries not found. Directories to search for the libraries can be specified in the numpy/distutils/site.cfg file (section [blas]) or by setting the BLAS environment variable.

大stackoverflow.com救了我。

yum install lapack lapack-devel blas blas-devel pip install numpy pip install scipy

不得不说这个包好大，compile了好长时间。