Issue 20779: Add pathlib.chown method

For pragmatic and philosophical reasons, I would argue that we should add chown to pathlib library.

I don't know about philosophical reasons ;-), but I don't think chown is very often used. Do you know of a context where it is?

Pragmatic reasons:

I use chown moderately often. Usually as root, I want to change the uid of the files after generating a bunch of files. But I almost never changed gid.

I am in two mind whether I should add lchown as well or not (just like lchmod) and make the signature of pathlib.chown same as os.chown (with third parameter, follow_symbolic_links).

If you close this as won't fix, I will not hold grudge against you, though. ;)

Well, I don't know yet, but if we ever want chown() in pathlib, I think it should be higher-level and accept symbolic uids as well.

+1 this.

I have a program that opens a UNIX socket as root for other processes to communicate with it.  I need to set the permissions to 0o775 and set the owner gid to a specific group so that members of that group can communicate with the process.  It's annoying to have to drop back to `os.chown(str(path), ...)` for this.

Hello!

I also use it frequently, but looking this issue I can agree with pitrou that there aren't  lot of people that use chown.

If I'm not wrong, there's a trend to move os to pathlib, perhaps chown should be in pathlib too :)

I can work on this.

I would love to use chown for a pathlib Path, too.

It may not be used often, but if anyone want's to change all the os references from a file, it would be cool to have it on pathlib!