Coverage Installation Hints for macOS Users: ============================================ venv ---- Here we will be using ``venv``, which is part of python's standard libary since python 3.3, to create a virtualenv for development. 1. Make sure you have installed Xcode and Homebrew. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 2. Install Python 3. ~~~~~~~~~~~~~~~~~~~~ For coala you will need to use Python 3, so you may simply use homebrew to install Python 3, or you could also `refer to the pyenv section <#pyenv>`__ to install Python 3 while you can also maintain other python versions. :: $ brew search python # This should display Python 3 $ brew install python3 $ python3 --version # To check the installed version 3. Create Virtual Environments with venv ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ :: # Create Virtual Env named myenv $ python3 -m venv myenv # This will create a folder named myenv in the # current directory. To activate this environment just type $ source myenv/bin/activate # You can start Python 3 by typing: $ python 4. Virtualenvwrapper with Python 3: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ :: # Installation $ pip3 install virtualenv $ pip3 install virtualenvwrapper # Folder to contain Virtual Environments $ mkdir ~/.virtualenvs # Add the following in ~/.bash_profile $ export WORKON_HOME=~/.virtualenvs $ source /usr/local/bin/virtualenvwrapper.sh # Activate Changes $ source ~/.bash_profile # Get Python 3 path (python3_pth) $ which python3 # Create a new virtual environment with Python 3 $ mkvirtualenv --python=python3_path myenv Finally! ~~~~~~~~ :: # Install python-coverage3 by $ easy_install coverage pyenv ----- Here we show how to use pyenv, which is simply a python installer that allows you to install multiple python versions and switch through them. After installation, you may also want to set up a virtual environment using :code:`venv` or :code:`virtualenv`. 1. Install pyenv with homebrew ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ :: $ brew update $ brew install pyenv 2. Installing and using python with pyenv ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ To install python you simply have to do this (you don't have to install all of them) : :: $ pyenv install 3.5.0 $ pyenv install 3.4.3 $ pyenv install 3.3.6 $ pyenv install 3.2.6 $ pyenv install 2.7.10 $ pyenv versions # lists the versions you have To use a particular version you simply have to do this : :: $ pyenv local 3.5.0 To know more about the available pyenv commands, please read their `Command Reference `__. Presently, while using pyenv, tests for version-file-read fail, if interested you can have a look `here `__.