由于在Mac OS X上brew install gcc之后缺少fortran编译器,仍然无法安装scipy

Question

我已阅读并按照此答案安装scipy/numpy/theano.但是,在brew install gcc之后,它仍然失败了同样的错误,即缺少Fortran编译器.虽然HomeBrew安装了gcc-4.8,但它没有安装任何gfortran或g95命令.我认为gfortran可能只是gcc 的同义词,然后我创建了一个符号链接

$ cd /usr/local/bin
$ ln -s gcc-4.8 gfortran
$ pip install scipy

然后它检测到gfortran命令,但仍抱怨没有Fortran编译器

customize Gnu95FCompiler
Found executable /usr/local/bin/gfortran
customize NAGFCompiler
Could not locate executable f95
customize AbsoftFCompiler
Could not locate executable f90
Could not locate executable f77
customize IBMFCompiler
Could not locate executable xlf90
Could not locate executable xlf
customize IntelFCompiler
Could not locate executable ifort
Could not locate executable ifc
customize GnuFCompiler
Could not locate executable g77
customize G95FCompiler
Could not locate executable g95
customize PGroupFCompiler
Could not locate executable pgfortran
don't know how to compile Fortran code on platform 'posix'
building 'dfftpack' library
error: library dfftpack has Fortran sources but no Fortran compiler found

我还该怎么办？

Answer 1

通过升级pip来修复,即使我刚刚第一次在同一天重新安装了我的pip/virtualenv.

(mypy)MAC0227: $ pip install --upgrade pip
...
(mypy)MAC0227: $ pip install theano
/Users/me/.virtualenvs/mypy/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:79: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
Requirement already satisfied (use --upgrade to upgrade): theano in /Users/me/.virtualenvs/mypy/lib/python2.7/site-packages
Requirement already satisfied (use --upgrade to upgrade): numpy>=1.6.2 in /Users/me/.virtualenvs/mypy/lib/python2.7/site-packages (from theano)
Collecting scipy>=0.11 (from theano)
/Users/me/.virtualenvs/mypy/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:79: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
  Downloading scipy-0.15.1-cp27-none-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl (19.8MB)
    100% |????????????????????????????????| 19.8MB 23kB/s
Installing collected packages: scipy
Successfully installed scipy-0.15.1

Answer 2

以下对我有用:

sudo apt-get install gfortran

在我的系统上:

Ubuntu 15.10(Linux 4.2.0-19-通用#23-Ubuntu x86_64 x86_64 x86_64 GNU/Linux)