NETBIOS encode/decode

netbios_encode.py

# Implemented the reverse of the compact answer on:
# https://stackoverflow.com/questions/1965065/encode-netbios-name-python/1965140

def netbios_encode(input_string):
    return ''.join([chr((ord(c)>>4)+ord('A'))+chr((ord(c)&0xF)+ord('A')) for c in input_string])

def netbios_decode(netbios):
    i = iter(netbios.upper())
    try:
        return ''.join([chr(((ord(c)-ord('A'))<<4)+((ord(next(i))-ord('A'))&0xF)) for c in i])
    except:
        return ''