Python Script for Namesilo DDNS

I set up the PIVPN for Raspberry Pi. I used NOIP for public DNS. I found it is quite annoying to click confirmation email from NOIP every month. I decided to setup a DDNS myself as an alternative of NOIP.
I used the Namesilo API to check if my local DNS has been updated, and update it with the Namesilo API.
The script can be found in this repo.
You can also look up this page forcrontabusage.