flatten_json.py

flatten_list=lambda l: sum(map(flatten_list,l),[]) if isinstance(l,list) else [l]

def flatten_json(json_r):
    normal = {x: y for x,y in json_r.items() if not isinstance(y, dict)}
    dict_value = [(x, y) for x,y in json_r.items() if isinstance(y, dict)]
    
    if bool(dict_value):
        new_dict = {".".join([str(value[0]), str(x)]): value[1][x] for value in dict_value for x in value[1]}
        normal.update(new_dict)
        return flatten_json(normal)
    else:
        list_value = [(x, y) for x,y in json_r.items() if isinstance(y, list) and bool(y)] 
        if bool(list_value):
            x = [[(v[0], x) for x in v[1]] for v in list_value ]
            normal_items = list(normal.items())
            normal = [dict(normal_items+list(z)) for z in itertools.product(*x)]
            normal = flatten_list([ flatten_json(x) for x in normal])
    
    return normal