If you use Pyenv to install multiple Python versions side-by-side and installed Anaconda to create virtual environments for each of your projects, install pyenv-virtualenv to integrate them.
Anaconda without the pyenv-virtualenv integration overwrites the PATH, and places itself to the front before pyenv would be able to handle the Python command calls. pyenv-virtualenv seamlessly combines the functionality of pyenv and Anaconda to handle the multiple Python versions and virtual environments.
The source code is at https://github.com/pyenv/pyenv-virtualenv
Install pyenv-virtualenv
Use Home Brew for the recommended installation
brew install pyenv-virtualenvAdd the initialization code to the ~/.bashrc, ~/.zshrc file:
if which pyenv-virtualenv-init > /dev/null; then eval "$(pyenv virtualenv-init -)"; fi