@varbin Python's cryptography package puts a bunch of stuff under hazmat, which the documentation describes as:
❗DANGER
This is a “Hazardous Materials” module. You should ONLY use it if you’re 100% absolutely sure that you know what you’re doing because this module is full of land mines, dragons, and dinosaurs with laser guns.
...but there are a lot of code examples which use it.
Notably, any asymmetric cryptography requires hazmat stuff.