If you are looking to move past this error, I *believe* you can do:
apt update
(That’s apt, rather than apt-get.)
With apt, you will have the chance to accept the change, which you should
accept.
This is from memory, but I think I remember correctly. And you aren’t doing
anything strange
I did an apt-get update, Raspbian Buster and got this:
Reading package lists... Done
E: Repository 'http://weewx.com/apt squeeze InRelease' changed its 'Origin'
value from '. squeeze' to 'python2 squeeze'
E: Repository 'http://weewx.com/apt