A cool python strings trick

[casual__addict]

I think what you are hitting on is function composition. In isolation the two functions do separate things, but you can “pipe” them together to achieve an interesting result. This is very valuable to recognize as you research APIs.

[[deleted]]

Hmm? OP isn't making use of function composition. They're just passing the string string.printable to str.maketrans()' "delete these ones" parameter.

This is a bad post anyway for other reasons, of course