This probably clashes with #2873.

This is ready for a rebase and update now that the related PR has been merged.

Please send a new PR if someone can update this.

@timgraham by update you mean rebase ?

Correct

Unfortunately, rebasing this is not enough:

• There are no tests for IPv4 and IPv6 and I'm not sure whether we should cover them since I haven't fully read the RFC
• The regex in 2e65d56 needs to be modified to conform the RFC (if I remember correctly, we should reject any domain names longer than 255 chars)
• We need more tests (e.g. TLDs longer than 3 chars)
• I'd probably update the default value of accept_idna to False. I don't see much IDNs to make it default behavior and it would be better to avoid mostly unnecessary encoding step by default.

Any updates on this?

By the way, I disagree with this:

I'd probably update the default value of accept_idna to False.

An IDN is also a valid domain name.

Yes, it is, but I'm not sure it's common enough to make it a default behavior. After the discussion on the django-developers list, I'd even prefer to remove it in order to have a simpler implementation.

I will address my comments in #3477 (comment) and send a pull request.

Thanks for the ping!

Is there any follow up on this ?

Thanks for the ping. I thought I already have opened a PR for this :/ Will open a PR this week.

I've opened #7300 as a follow-up.