System (set by /Users/your_account/.pyenv/version) Alternatively, you can run: $ pyenv versions For example, if you prefer 2.7.12 over 3.5.2: $ pyenv global 2.7.12 3.5.2Īll installed Python versions can be located in ~/.pyenv/versions.

Use the global command to set global version(s) of Python to be used in all shells. Then install the desired versions: $ pyenv install 2.7.12 To list the all available versions of Python, including Anaconda, Jython, pypy, and stackless, use: $ pyenv install -list Restart your shell so the path changes take effect. $ echo 'eval '$(pyenv init -)'' > ~/Projects/config/env.sh To upgrade pyenv in the future, use upgrade instead of install.Īfter installing, add pyenv init to your shell to enable shims and autocompletion. First, we must install pyenv using homebrew: $ brew install pyenv Pyenv is a simple Python version manager that can manage and install different versions of Python. Save the file and open a new terminal to take the new $PATH into account (everytime you open a terminal. Let's upgrade them both: $ pip install -upgrade setuptoolsĮxecutable scripts from Python packages you install will be put in /usr/local/share/python, we already had this in the Env.sh file created before. It also installed Pip (and its dependency Setuptools), which is the package manager for Python. Running $ which python should output /usr/local/bin/python. When finished, you should get a summary in the terminal. The following command will install Python 2.7 and any dependencies required (it can take a few minutes to build everything): $ brew install python 2, 3, and anaconda) then you should use pyenv. If you plan to use multiple versions of Python (e.g. There are two ways to install Python, (1) Homebrew and (2) Pyenv. But you don't want to mess with the system Python (some system tools rely on it, etc.), so we'll install our own version(s). To invoke the Python interpreter from any particular directory, you must add the Python directory to your path.OS X, like Linux, ships with Python already installed. In Mac OS, the installer handles the path details. You can find complete installation details for Mac OS installation. Jack Jansen maintains it and you can have full access to the entire documentation at his website −.

For older Mac OS's before Mac OS X 10.3 (released in 2003), MacPython is available. See for instructions on getting the current version along with extra tools to support development on the Mac. Recent Macs come with Python installed, but it may be several years out of date. Compiling the source code offers more flexibility in terms of choice of features that you require in your installation. If the binary code for your platform is not available, you need a C compiler to compile the source code manually. You need to download only the binary code applicable for your platform and install Python. Python distribution is available for a wide variety of platforms.

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