There's more...
The pip is capable, so we suggest taking a look at the user guide online. Pay special attention to the very useful pip freeze > requirements.txt functionality so that you can communicate about external dependencies with your colleagues.
Finally, conda is the package manager and pip replacement for the Anaconda Python distribution or, in the words of its home page, a cross-platform, Python-agnostic binary package manager. Conda has some very lofty aspirations that transcend the Python language. If you are using Anaconda, we encourage you to read further on what conda can do and use it, and not pip, as your default package manager.