RST: Detect `::` signifying default language code-block.

blacken-docs will do this:

- call ``reset_queries()``, like this::
+ call ``reset_queries()``, like this:
+ 
+  .. code-block:: python

But it’s an old-as-time RST convention that the :: means the following code block is the default language (i.e. Python)

Not respecting that is quite a lot of noise. Is there a way to control it? Could there be?

Thanks!

Refs https://github.com/django/django/pull/16261

[carltongibson]

It’s not just up to me 😄

Personally, I do want to keep the :: usage, but we can always adapt if the benefits are worth it.

I still need to investigate all the changes but, I’m more concerned by the required Oh, it always has to be valid code changes.

The trouble with skips is we no longer have an auto-formatter.

What we need is a black-ish that will hand wave over the invalid bits. (Don’t think that’s on the table)

You’ve been looking at this for while. I only just came to it. I also need to confer with Mariusz.

(This seems more a discussion for the Django PR than here… 😬)

[carltongibson]

That’s OK. Disagreement on such is within the bounds of reason 😜