Thanks for your suggestion but I do not wish to install pip because I do not want to install Electrum. The latter can be run without it being installed (
https://electrum.org/#download)
Electrum doesn't have to be installed. You're only installing the utility required to upgrade the package and also upgrade the package itself. But as I said, it'll be fine without upgrading as well.
Do you think Debian 11 (Bullseye) will have "requests-2.25.1"? If yes, I can wait for Debian 11 to become a stable release. It is only a few months from now.
Yeah it will. If you prefer to not install anything, then this is probably the way to go.