Another way to do this, that you or someone may be interested in, is by using pip-tools. You write a requirements.in text file where you list libraries by just

Another way to do this, that you or someone may be interested in, is by using pip-tools. You write a requirements.in text file where you list libraries by just their name, and then run "pip-compile requirements.in" and it will output a requirements.txt. It also has a function called "pip-sync" which will then install/update everything in the requirements.txt file. https://github.com/nvie/pip-tools https://github.com/nvie/pip-tools