hexdump implementation in Python

hexdump.py

def hexdump(src, length=16):
    FILTER = ''.join([(len(repr(chr(x))) == 3) and chr(x) or '.' for x in range(256)])
    lines = []
    for c in xrange(0, len(src), length):
        chars = src[c:c+length]
        hex = ' '.join(["%02x" % ord(x) for x in chars])
        printable = ''.join(["%s" % ((ord(x) <= 127 and FILTER[ord(x)]) or '.') for x in chars])
        lines.append("%04x  %-*s  %s\n" % (c, length*3, hex, printable))
    return ''.join(lines)

Originally come from my old tweet [1] paste on codepad [2]

[1] https://twitter.com/sbrabez/statuses/15311796519
[2] http://codepad.org/ekfw3UZg

Thanks for this really handy snippet. I did a quick fix to make its output more like hexdump's. Here is the modified version: https://gist.github.com/7h3rAm/5603718

Very good snippet ! Thanks !
I did a port to python3: https://gist.github.com/1mm0rt41PC/c340564823f283fe530b