what is the name?

[Skaperen]

control character was one of my early thoughts but it "feels" wrong because the numeric encoding in octal, decimal, and hexadecimal can encode the entire range of 256 values in an octet (why the decoded side of this is a bytes type in python). so it's more than just control characters although i would expect many uses of this to just do control characters. but it may be the right name since the default mode of encoding results in "ab^cd\r" when encoding "\141\142\003\144\015". lacking any other "genius" idea, "control character(s)" is going to be the name.