Dict mapper

gistfile1.py

def get_dot(d, dotkey):
    """Get value from a dict-like object with dot notation keys"""
    try:
        value = d
        for key in dotkey.split('.'):
            value = value.get(key, {})
        return value if value else None
    except AttributeError:
        return None


def map_dicts(keys_mappings, source_dict_list):
    return [map_dict(keys_mappings, source_dict)
            for source_dict in source_dict_list]


def map_dict(keys_mappings, source_dict):
    item = {}
    for keys in keys_mappings:
        if not isinstance(keys, (tuple, list)):
            keys = (keys, keys)
        if isinstance(keys[1], (tuple, list)):
            val = map_dict(keys[1], source_dict)
        else:
            val = get_dot(source_dict, keys[1])
        item[keys[0]] = val
    return item