pythonpython-2.7python-3.xmac-addressdpkt

Convert from mac address to hex string and vice versa - both python 2 and 3

I have MAC address that I want to send to dpkt as raw data. dpkt package expect me to pass the data as hex stings. So, assuming I have the following mac address: '00:de:34:ef:2e:f4', written as: '00de34ef2ef4' and I want to encode in to something like '\x00\xdeU\xef.\xf4' and the backward translation will provide the original data.

On Python 2, I found couple of ways to do that using encode('hex') and decode('hex'). However this solution isn't working for Python 3.

I'm haveng some trouble finding a code-snippet to support that on both versions.

I'd appriciate help on this.

Thanks

Solution

  • binascii module works on both Python 2 and 3:

    >>> import binascii
>>> binascii.unhexlify('00de34ef2ef4') # to raw binary
b'\x00\xde4\xef.\xf4'
>>> binascii.hexlify(_) # and back to hex
b'00de34ef2ef4'
>>> _.decode('ascii') # as str in Python 3
'00de34ef2ef4'