Asyncore found in test_ftplib are there any plans to change?

I am testing a fix for an old FTP bug (Issue10202) and I noticed that asyncore is still used in test_ftplib. Is there a plan to remove? I guess this is not the only test module affected. Should I create a bug?

I think this question is fit for the ASYNC-SIG section. Perhaps also tagging @yselivanov

Pull requests for getting rid of asyncore usage by Python tests are welcome.
Please feel free to ask me for review and merging.

That said, Python Core developers have no capacity to write these tests themself.