> Changing the affected version to just 2.7.

Oh. The request looks like an enhancement. The problem is that if you add a new feature in Python 2.7.n+1, it's not available on Python 2.7.n. Support 2.7.n as well, you have to backport the code in your application.

I'm not sure that it's worth to add such enhancement to the random at this point in Python 2.

I suggest you to either upgrade to Python 3 (hello, Python 3!) or implement the SHA512 in your application. I expect that random.seed() in only called at one or maybe two places, so it shouldn't be hard to patch your code ;-)

In short, I suggest to close the issue as wont fix.