Clojure's get-in in Python

get.py

"""
Clojure-inspired ``get_in`` function which gets value from nested dicts,
returning ``None`` if a key is not found.
"""


def get_in(obj, *keys):
    for k in keys:
        v = obj.get(k, None)

        if not v:
            return None

        obj = v

    return obj


def main():
    obj = {
        'one': 1,
        'two': {
            'one': 11
        }
    }

    assert 1 == get_in(obj, 'one')
    assert 11 == get_in(obj, 'two', 'one')
    assert None == get_in(obj, 'three')
    assert None == get_in(obj, 'two', 'three')


if __name__ == '__main__':
    main()

it should be if v is None what if you fetch a falsy value?