BUG: linspace and logspace give incorrect results or crash with some inputs

[kyleaoman]

The implementations of linspace and logspace are improved so that retstep can be used with linspace and logspace rejects inputs for start and stop with non-dimensionless units, and also correctly handles the base keyword argument with units.

Tests are updated to reflect changes.

Closes #542
Closes #543

[kyleaoman]

pre-commit.ci autofix

[kyleaoman]

pre-commit.ci autofix

[kyleaoman]

pre-commit.ci autofix

[neutrinoceros]

Thank you so much for catching and fixing so many (of my) mistakes ! There's a merge conflict now that prevents merging, can you please update your branch with a rebase ?

[neutrinoceros]

pre-commit.ci autofix

[kyleaoman]

pre-commit.ci autofix

[kyleaoman]

I think that should address all of your review points, but let me know if there are any follow-ups or anything else.

And no problem for catching these bugs - I'm working on a big PR for swiftsimio adding support for all of the numpy functions (already did ufuncs a while ago) supported by unyt, so as I work through each one individually I'm finding a few things ;)

[kyleaoman]

Incidentally, would be great to have a release of 3.0.4 before I get to the point of merging SWIFTSIM/swiftsimio#219. I'm getting close to handling all of the functions but expecting some refactoring after that, plus adding a few more tests and updating docs, so hoping to merge sometime in January - any chance of a release around that time?

[neutrinoceros]

We're hoping to get unyt 3.0.4 out before 2025, though I can't make any promises.
Do you expect to have more patches for unyt after this one ?

[kyleaoman]

@neutrinoceros I don't know - if I find any more missing logic, then yes, but it's a matter of going through each function one at a time.

[neutrinoceros]

I understand, I did go through the pain myself about 3 years ago and, not looking for excuses but I'm sure that trying to write ~300 functions in a short amount of time was at least part of the reason why so many of them have blatant bugs.