How to seperate dict value?

[perfringo]

You have list with one string item in it. Obvious way would be splitting this item at comma and unpack:

>>> line = ['192.168.1.240,fe80::350e:d28d:14a5:5cbb']
>>> ip_addr, mac_addr = line[0].split(',')
>>> ip_addr
'192.168.1.240'
>>> mac_addr
'fe80::350e:d28d:14a5:5cbb'

If the result should be dictionary then one could do this:

>>> data = dict(zip(('ip_addr', 'mac_addr'), line[0].split(',')))
>>> data
{'ip_addr': '192.168.1.240', 'mac_addr': 'fe80::350e:d28d:14a5:5cbb'}
>>> data['ip_addr']
'192.168.1.240'