Check if a string is hexadecimal

Question

I know the easiest way is using a regular expression, but I wonder if there are other ways to do this check.

Why do I need this? I am writing a Python script that re

Answer 1

One more simple and short solution based on transformation of string to set and checking for subset (doesn't check for '0x' prefix):

import string
def is_hex_str(s):
    return set(s).issubset(string.hexdigits)

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