You may want to check out my post on installing Reddit for testing.
In a post I made to /r/redditdev about where to start with contributing to Reddit, I got a lot of helpful tips. One suggestion was that I try fixing ticket #729:
“Literal IPv6 addresses in URLs require square brackets around them. reddit reports that these are invalid. For example, try testing it with http://::1/, which is a perfectly valid URL.”
So I went about getting myself acquainted with the Reddit code base. Reddit is based on Pylons and I am familiar with anothe web framework Django. My thought process went like this: Reddit is tripping up on its url validation. So I need to track down the bit of code that verifies urls and correct it. On the new post submission page, the link you submit is verified. So if I find that page in the code I can trace my way to where the verification is done. Pylons has a main routing file, so I can start there.
So in the end the problem was not a part of the Reddit codebase, but in another library.
~Matt
