Dot-notation access to deeply nested dict

gistfile1.txt

def deep_get(path, data, default=None):
    """
    Uses a provided dot-notation path to retrieve values from a deeply nested dict
    """
    if isinstance(path, str):
        path = path.split('.')
    obj = data
    for key in path:
        obj = obj.get(key)
        if obj is None:
            return default
    return obj