massive=[['cn=Андрей', 'ou=Masters', 'o=lab2', '0b1dwe8065eff78ad92771ef78cc076c'],['cn=Barma', 'ou=Masters', 'o=lab2', '0b1dc48065eff78ad92771ef78cdfgdf']]

list1=[['CN=Андрей', 'OU=Masters', 'O=lab2', '0b1dwe8065eff78ad92771ef78cc076c'],['CN=Barmad', 'OU=Masters', 'O=lab2', 'fb1dc48065eff78ad92771ef78cdfgdf']]

#!/usr/bin/python
# -*- coding: utf-8 -*-


def change (massive,list1):
    to_del=[]
    to_add=[]
    for num in list1:
        if num not in massive:
            to_del.append(num)
    for num in massive:
        if num not in list1:
            to_add.append(num)
    return to_add,to_del

to_add,to_del=change(massive,list1)
print to_add
print 'n'
print to_del

[['cn=xd0x90xd0xbdxd0xb4xd1x80xd0xb5xd0xb9', 'ou=Masters', 'o=lab2', '0b1dwe8065eff78ad92771ef78cc076c'], ['cn=Barma', 'ou=Masters', 'o=lab2', '0b1dc48065eff78ad92771ef78cdfgdf']]

[['CN=xd0x90xd0xbdxd0xb4xd1x80xd0xb5xd0xb9', 'OU=Masters', 'O=lab2', '0b1dwe8065eff78ad92771ef78cc076c'], ['CN=Barmad', 'OU=Masters', 'O=lab2', 'fb1dc48065eff78ad92771ef78cdfgdf']]

def change(items_1, items_2):
    # Для приведения элементов в нижний регистр
    items_1 = [list(map(str.lower, sub_list)) for sub_list in items_1]
    items_2 = [list(map(str.lower, sub_list)) for sub_list in items_2]

    to_del = [num for num in items_1 if num not in items_2]
    to_add = [num for num in items_2 if num not in items_1]

    return to_add, to_del


items_1 = [['cn=Андрей', 'ou=Masters', 'o=lab2', '0b1dwe8065eff78ad92771ef78cc076c'], ['cn=Barma', 'ou=Masters', 'o=lab2', '0b1dc48065eff78ad92771ef78cdfgdf']]
items_2 = [['CN=Андрей', 'OU=Masters', 'O=lab2', '0b1dwe8065eff78ad92771ef78cc076c'], ['CN=Barmad', 'OU=Masters', 'O=lab2', 'fb1dc48065eff78ad92771ef78cdfgdf']]

to_add, to_del = change(items_1, items_2)
print 'to_add: %s' % (to_add,)
print 'to_del: %s' % (to_del,)

to_add: [['cn=barmad', 'ou=masters', 'o=lab2', 'fb1dc48065eff78ad92771ef78cdfgdf']]
to_del: [['cn=barma', 'ou=masters', 'o=lab2', '0b1dc48065eff78ad92771ef78cdfgdf']]