Multiple characters in Python ord function

Question

Programming beginner here. (Python 2.7)

Is there a work around for using more than a single character for Python's ord function?

For example, I have a hex string '\xff\x1a' which I'd like the decimal value for so that I can sum it with other hex strings. However ord only accepts a single hex string character.

Thank you!

Jaxartes

remember that strings are iterable by character... – Madoc

How the solution below, Micuzzo? – Farad

What do you mean by decimal value? ord() works on a byte, and that string contains two bytes. – Mayest

@AshwiniChaudhary yes you are correct. My intention is to sum a series of hex values and from my understanding the best way to do this is to convert them into a integer and then sum... then reconvert to hex. – Jaxartes

Answer 1

Strings are iterable, so you can loop through the string, use ord and add the results:

your_sum = sum([ord(i) for i in '\xff\x1a'])

Farad

Thank you. This seem to work very well. Unfortunately I don't have enough reputation to up vote you... – Jaxartes

Just mark the solution as answer, and I will be rewarded. – Farad

Thanks. By the way, what purpose does this code serve? – Farad

I will copy what I wrote to Ashwini here:My intention is to sum a series of hex values and from my understanding the best way to do this is to convert them into a integer and then sum... then reconvert to hex. – Jaxartes

@micuzzo: You don't have a series of hex values, you just have a series of bytes. '\x40' is just one byte, print it and you'll see @. – Suspicious

Gematria! – Gaddis

Come on people! Use a generator expression rather than wasting memory and CPU cycles creating an intermediate list: your_sum = sum(ord(i) for i in '\xff\x1a'). – Lilylivered