A few typos, grammar mistakes, and code snippet errors in the docs

Documentation

(UPDATE: Added multiple suspected errors in code snippets in the documentation and another typo to this initial report in https://github.com/python/cpython/issues/156233#issuecomment-5435277380 as I was OK'd to open a PR but encouraged to expand the scope before sending a fix.)

Hello Python team,

this is just a typo so I know an issue is not required, but I hope you won't mind if I open one in case someone else wants to include it in a larger typo cleanup PR they are already doing (if no one picks it up after some time and I don't find other typos, I can send a PR).

In the latest version of https://docs.python.org/3/howto/mro.html#python-2-3-mro (archived as is at https://web.archive.org/web/20260822145356/https://docs.python.org/3/howto/mro.html#python-2-3-mro )

• In the sentence

  Then repeat the operation until all the class are removed or it is impossible to find good heads.

  it seems "all the class" should be "all the classes".

Thanks so much!

Linked PRs

• gh-156320
• gh-156475
• gh-157177
• gh-157221
• gh-157222
• gh-157223
• gh-157386

從 docs.python.org/3/howto/mro.html#python-2-3-mro 的文件頁面開始，檢查已回報的文法修正。接著閱讀 issue 留言中關於新增拼字錯誤和程式碼片段錯誤的內容；當文件中記錄的錯誤都獲得修正時，工作就完成了，不過連結的 PR 表明修正工作已經在進行中。