A teeny tiny xxd clone in a ten-line Python function

hex_dump.py

import math
import re

def hex_dump(data, cols=16):
    data_len = len(data)
    addr_pad = math.ceil(data_len.bit_length() / 4)

    for i in range(0, data_len, cols):
        paragraph = data[i:i + cols]
        hex_view = paragraph.hex(' ', 1).ljust(cols * 3)
        ascii_view = re.sub(rb'[^\x20-\x7f]', b'.', paragraph).decode()

        print(f'{i:0{addr_pad}x}: {hex_view} {ascii_view}')