如何在replit数据库中存储对象？

Question

我的repl.it数据库出了点问题。我尝试使用以下代码在其中存储一堆数据和一个对象：

db[message.author.id] = {
    "creation_date": datetime.datetime.now().strftime("%Y-%m-%d"),
    "tutorial_completed": False,
    "money": 0,
    "properties": [shack]  # < the object
}

但是，每当我尝试运行它时，我都会得到以下错误：

Traceback (most recent call last):
  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/discord/client.py", line 343, in _run_event
    await coro(*args, **kwargs)
  File "main.py", line 116, in on_message
    db[message.author.id] = {
  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/replit/database/database.py", line 491, in __setitem__
    self.set(key, value)
  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/replit/database/database.py", line 500, in set
    self.set_raw(key, _dumps(value))
  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/replit/database/database.py", line 56, in dumps
    return json.dumps(val, separators=(",", ":"), cls=DBJSONEncoder)
  File "/usr/lib/python3.8/json/__init__.py", line 234, in dumps
    return cls(
  File "/usr/lib/python3.8/json/encoder.py", line 199, in encode
    chunks = self.iterencode(o, _one_shot=True)
  File "/usr/lib/python3.8/json/encoder.py", line 257, in iterencode
    return _iterencode(o, 0)
ValueError: Circular reference detected

当我删除对象时，它工作得很好，所以看起来这是导致问题的原因。你知道为什么会发生这种情况吗?或者有什么办法可以解决呢？谢谢。

Answer 1

您可以尝试使用json模块将其编码为JSON对象，方法是先将其转换为字符串，然后存储该字符串。我曾经使用环境变量做过类似的事情，但记不住细节了。