安装 Scipy 找不到 Fortran Mac

Question

我在安装scipy时遇到了很大的麻烦。

当我运行:PIP安装脚本

我得到:

Requirement already satisfied (use --upgrade to upgrade): scipy in 
/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python

然而，当我在python中导入scipy时，我得到没有模块称为scipy错误。

当我尝试通过easy_install scipy，它开始下载，然后给我:

error: Setup script exited with error: library dfftpack has Fortran sources but no Fortran compiler found

当我尝试通过brew安装gfortran时，我得到:brew gfortran

Error: No available formula for gfortran 
GNU Fortran is now provided as part of GCC, and can be installed with:
brew install gcc

但是当我尝试这样做时，我得到:

(py)Shopkicks-MacBook-Air-12:shopkick markthornburg$ brew install gcc
Warning: gcc-5.2.0 already installed, it's just not linked

我做错了什么?

Answer 1

您是否尝试过手动链接gfortran到/usr/local/bin，例如:

ln -s /usr/local/Cellar/gfortran/4.8.2/bin/gfortran /usr/local/bin/

您可能需要根据安装的版本将路径替换为gfortran。

你可能还想设置:

export LD_LIBRARY_PATH=/usr/local/Cellar/gfortran/4.8.2/gfortran/lib:$LD_LIBRARY_PATH
export CPLUS_INCLUDE_PATH=/usr/local/Cellar/gfortran/4.8.2/gfortran/include/c++/4.8.2:$CPLUS_INCLUDE_PATH

同样，这些路径可能需要在您的系统上更改(取决于版本)