Get names

names.py

strategies = [
    {
        'type': str,
        'return': lambda input: [input.strip()] if input.strip() else [],
    },
    {
        'type': dict,
        'return': lambda input: [input.get('name')] if input.get('name') else [],
    },
    {
        'type': (list, tuple),
        'return': lambda input: [name for item in input for name in get_names(item)],
    },
    {
        'type': None.__class__,
        'return': lambda input: []
    },
]

def get_names(input=None) -> list:
    return [
        name
        for strategy in strategies if isinstance(input, strategy['type'])
        for name in strategy['return'](input)
    ]

print(get_names())

print(get_names(''))

print(get_names({
    'name': 'something',
    'code': 1,
}))

print(get_names([
    {
        'name': 'something',
        'code': 1,
    },
    {
        'name' : 'something else',
        'code': 2,
    },
]))

print(get_names([
    None,
    '',
    {
        'name': 'one',
        'code': 1,
    },
    [
        {
            'name': 'two',
            'code': 1,
        },
        {
            'name' : 'three',
            'code': 2,
        },
    ],
    [
        'four',
        'five',
        'six',
        '',
        {
            'name': 'seven',
            'code': 1,
        },
        {
            'name' : 'eight',
            'code': 2,
        },
        [
            'nine',
            None,
            'ten',
            '',
            {
                'name': '',
                'code': 1,
            },
            {
                'name' : 'eleven',
                'code': 2,
            },
        ],
    ],
]))