I am not a native English speaker I think it should be "Apple's guidelines" instead of "Apple guidelines" in idlelib.

Do we need a back port to 3.7?

Except for "guidlines" in idlelib the other two are 3.8 only.

@terryjreedy usually likes to make the IDLE doc fixes into their own separate PR, so you may want to wait for him to comment.

My typo, thanks for catching. Nouns can be used as adjectives, so 'Apple guidelines' is OK, with a slightly different sense from 'Apple's guidelines'. But I will consider opinions on which seems better, especially for beginners.

Changes to idle.rst should not only be backported, but need to be propagated to idlelib/help.html, which change also should be backported. It is easier to do it in a separate PR, which I will do.

Changes to idle.rst should not only be backported, but need to be propagated to idlelib/help.html, which change also should be backported. It is easier to do it in a separate PR, which I will do.

Do you want me to revert idlelib changes from this PR? The other two typos are 3.8 only. Hence backport might require manual work.

@terryjreedy: Please replace # with GH- in the commit message next time. Thanks!

Follow-up is #13354.

Thanks @terryjreedy