Writes ascii hex strings to a file directly as in binary hex format. The string can be multi-line or single-line and 0x-prefixed or not. Excess whitespace in the input is ignored. Get the module via ...

an IDstring is a string-like object which can be incremented, to produce a series of serial-number-like strings, consisting of Arabic digits and upper case letters ...

If you work with strings in your Python scripts and you're writing obscure logic to process them, then you need to look into ...