First, go to http://anaconda.org/. We can see Download Anaconda the top-right part of the page. Based on the individual operating system, users should download the appropriate package.
Depending on which version you prefer, you could download Python 3.6 or Python 2.7. Generally speaking, for new learners it is a good idea to download the latest version (Python 3.6 in this case). This applies for both Mac and Linux-based operating systems.