TypeError：TextIOWrapper 类型的 Object 不是 JSON 可序列化我不知道如何处理

Question

I want to parse this dictionary to a json file. I saw lots of solutions on google and on this forum but none of them worked.

import json


standardcategories = {
                "unnecessary": 0,
                "unimportant": 1,
                "important": 2,
                "crucial": 3,
                "fixed": 4
}
with open('categories.json','w') as f:
    json.dump(f,standardcategories,indent=2)

Answer 1

Use:

json.dump(standardcategories, f, indent=2)

Instead of:

json.dump(f, standardcategories, indent=2)

Notice that I've interchanged the order of f and standardcategories