In order for our Python code to work, we'll want to make sure a few libraries are installed.
First, from either the keyboard/monitor or SSH console type in:
...you'll be asked if you want to continue. Type "Y" for yes, and hit enter.
This part will probably take a little while.
Then you can install the IMAPClient Python library, which lets Python talk to most e-mail services:
The current version of the script should actually work with any e-mail provider that provides IMAP access. A few useful links:
If you have two-factor authentication enabled on your GMail account, you'll need to generate an application-specific password to use IMAP. I followed Google's detailed instructions and was up and running in no time.
Not sure if you have two-factor auth enabled? That probably means you don't, so don't worry about it for now.