Build Python3 scientific computing environment in MAC OS X 10.9

Installing Homebrew

Use Homebrew to manage Python versions. In Terminal/iterm2 input:

$ ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

If the previous system did not install Command line Tools, this time will also be automatically prompted to install, as prompted to do so; For more details on the Homebrew settings, refer to the previous article;

Installing Python 3.4 with Homebrew

$ brew tap homebrew/science$ brew tap homebrew/python$ brew update && brew upgrade# 安装 brewed python3$ brew install python3

Check the path:

$ which python3# 应该提示 /usr/local/bin/python3$ echo $PATH# /usr/local/bin 需要在 /usr/bin 之前

Install PIL, etc.

$ brew install pillow imagemagick graphviz$ brew install cairo --without-x$ brew install py2cairo # 如果系统里没有 xquartz，需要先自行安装：https://xquartz.macosforge.org/landing/$ brew install qt pyqt

Install Numpy, Scipy, etc.

Python 3.4 starts with a built-in PIP Package Manager that enables pip3 you to manage the required packages directly using commands:

pip3 install numpypip3 install scipypip3 install matplotlibpip3 install pandaspip3 install ipython[all]

Set commands such as Python/ipython/pip to use the Python 3.X version by default

If there are two versions of 2.7.X and 3.X in the system, the python ipython pip command will use the 2.7.X version by default. To use the 3.X version, either use the command, python3 ipython3 pip3 or add the alias in the. Bash_profile:

$ subl .bash_profile # 使用 sublime text 打开 .bash_profile 文件

Add in File:

# aliasalias python=python3alias ipython=ipython3alias pip=pip3

After setting,, and python ipython so on, the pip command will load the 3.X version by default, to use the 2.7.X version, then enter python2 , ipython2 pip2 .

Why use Python 3.X

Would scientists ever Move to Python 3?

Why do you should move to Python 3-now

Reference

Scientific Python on Mac OS X 10.9 with homebrew

Build Python3 scientific computing environment in MAC OS X 10.9