does not import Mper se, I found that I have to add an import explicitly when I am being very tidy with namespaces in packages (just using what I use frequently, qualify the rest).
Is it possible to combine these two in a single line?
I wonder it this is accidental, or something I can rely on. I am inclined to the latter, since here I am using M as a symbol, not as a module designator (which would require using M.Submodule).
Yes, this will keep working (unless we remove the module “self reference”, which some people want, but I don’t think is likely). There was a warning in 0.7 because using M: M used to be equivalent to using M, but now will just bring in a single binding for M itself rather than everything exported from it.
Nice, I didn’t know about this. This was my only use-case for import, but now I can replace all my import M with using M: M and not need import at all.