#convert string to hex def toHex(s): lst = [] for ch in s: hv = hex(ord(ch)).replace('0x', '') if len(hv) == 1: hv = '0'+hv lst.append(hv) return reduce(lambda x,y:x+y, lst) #convert hex repr to string def toStr(s): return s and chr(atoi(s[:2], base=16)) + toStr(s[2:]) or ''