Thanks, I am glad you liked it. To answer your question: convenience. By using the pyenv plugin of virtualenv, you can map a project to a particular virtual environment. (Look at pyenv local ) I had some instances where either I forget activating the virtual environment or I am using the wrong environment. I can prevent these errors from using pyenv . It just allows me to be a bit lazy.

Thank you @Kleo, for sharing this. I am learning the basics right now. There is a lot to learn from your experience. It is not easy to learn to code on your own. There are a lot of roadblocks(and I think, I speak for all the new guys). There are, a lot of resources mentioned above and I look forward to using them to my best.