bash_profile with the following environment variablesĮxport VIRTUALENVWRAPPER_PYTHON=/usr/local/bin/python3Įxport VIRTUALENVWRAPPER_VIRTUALENV=/usr/local/bin/virtualenv You might run into the following error after installing virtualenvwrapper $ workon Let’s install it $ pip3 install virtualenvwrapper These extensions include wrappers fro creating, deleting and managing our development workflow.įor example with only virtualenv to activate a virtual environment you would need the following command. $ pip install virtualenvĪ set of extensions for virtualenv.

If you install both libraries into your host python you would end up with conflicts. For instance you have two projects and one requires version 1 of some library, but the other requires version 2 of the same library. The problem being addressed is dependencies and versions of those dependencies. $ brew install python3Ĭheck the Python version $ python -versionĪ tool to create isolated Python environments. Mac OS X comes with Python 2 installed but this tutorial uses Python 3.Install it with Homebrew. It’s also possible to build scalable and secure web apps with Flask Prerequisites HomebrewĪ free and open-source software package management system that simplifies the installation of software on Apple’s Mac OS operating system and Linux. It’s great for beginners because it is easy to set up, actively supported by the community, well documented and simple and minimalistic. Flask is a simple, easy to use microframework for Python.

Homebrew pip