This is rookie stuff, but it’s a recurring security issue where crypto libraries have APIs littered with footguns. The “lambda x, y, z: None” just strikes me as

This is rookie stuff, but it’s a recurring security issue where crypto libraries have APIs littered with footguns. The “lambda x, y, z: None” just strikes me as cargo culting copy paste code - I’m willing to bet there is other software with the same exploit as they all copied the same answer on StackOverflow