Beginner friendly error messages for missing self

Feature or enhancement

Proposal:

>>> class A:
...     def lol(a):
...         print(a)
...
>>> A().lol(1)
Traceback (most recent call last):
  File "<python-input-1>", line 1, in <module>
    A().lol(1)
    ~~~~~~~^^^
TypeError: A.lol() takes 1 positional argument but 2 were given

I'd like to request a better experience for this use case.

Has this already been discussed elsewhere?

https://discuss.python.org/t/beginner-friendly-error-messages-for-missing-self-typeerror-a-lol-takes-1-positional-argument-but-2-were-given/107414

Links to previous discussion of this feature:

No response

Linked PRs

• gh-152326

先从 issue 中的 A().lol(1) 示例开始，然后阅读链接的讨论和 PR gh-152326，以了解 đề xuất的方向。完成的标准是，项目针对这个因缺少 self 而产生的 TypeError 形成了一个已达成共识且适合初学者的处理方式，并且链接的工作已得到解决。