Cannot get scikit-learn installed on OS X

Question

I would like to use scikit-learn on an upcoming project and I absolutely cannot install it. I can install other packages either by building them from source or through pip without a problem. For scikit-learn, I've tried cloning the project on GitHub and installing via pip without success. Can anyone please help? Here is part of my pip.log:

Downloading/unpacking scikit-learn
  Running setup.py egg_info for package scikit-learn
    Warning: Assuming default configuration (scikits/learn/{setup_scikits.learn,setup}.py was not found)Warning: Assuming default configuration (sklearn/svm/tests/{setup_tests,setup}.py was not found)Appending scikits.learn configuration to
    Ignoring attempt to set 'name' (from '' to 'scikits.learn')
    Appending sklearn.check_build configuration to sklearn
    Ignoring attempt to set 'name' (from 'sklearn' to 'sklearn.check_build')
    Appending sklearn.svm.tests configuration to sklearn.svm
    Ignoring attempt to set 'name' (from 'sklearn.svm' to 'sklearn.svm.tests')
    blas_opt_info:
      FOUND:
        extra_link_args = ['-Wl,-framework', '-Wl,Accelerate']
        define_macros = [('NO_ATLAS_INFO', 3)]
        extra_compile_args = ['-faltivec', '-I/System/Library/Frameworks/vecLib.framework/Headers']

Answer 1

I came across this nice tutorial and with just a few straight forward steps you can install it via PIP like this:

(Only the outlines. For details visit the authors page.)

1. install Xcode
2. install pip
3. install brew
4. install NumPy
5. install gfortran (important!)
6. install SciPy
7. install matplotlib (useful)
8. install scikit-learn
9. test

Also see the comments on the authors page for how to install PIP and Virtualenv.

Answer 2

Install SciPy Superpack or EPD to get all the required dependencies in one shot under OSX.

Answer 3

If you use Homebrew, then these two commands should do it for you:

brew tap homebrew/python
brew install scipy

Answer 4

You can use pip to install scikit.

http://scikit-learn.org/stable/install.html