Help with nested dictionary

[Larz60+]

I added code tags for you.
It's so much easier to read a dictionary if written like:

bond0: {
    'MII Status:': 'up',
    'Aggregator ID:': '2',
    'Slave Interfaces': {
        'p1p1': {
            'MII Status': 'up',
            'Permanent HW addr': '9c:dc:71:45:eb:80',
            'MII Status': up
        },
        'p4p1': {
            'MII Status' : 'up',
            'Permanent HW addr': '9c:dc:71:4d:80:20',
            'MII Status': up
        }
    }
}

you can use something like the following to traverse a nested dictionary:

def display_dict(thedict):
    for key, value in thedict.items():
        if isinstance(value, dict):
            print(f'{key}:')
            self.display_dict(value)
        else:
            print(f'    {key}: {value}')

display_dict(bond0)

This also corrects errors you had in your definition