Add eval?

[max-sixty]

Is your feature request related to a problem?

We currently have query, which can runs a numexpr string using eval.

Describe the solution you'd like

Should we add an eval method itself? I find that when building something for the command line, allowing people to pass an eval-able expression can be a good interface.

Describe alternatives you've considered

No response

Additional context

No response

[relativistic]

This was labeled as completed with #7163 , but if I'm reading the documentation correctly, Dataset.eval does not allow the numexpr engine, like the original comment by @max-sixty requests. Any idea if there is any plan to enable the numexpr engine like in the original comment

I am doing math operations on very large dataarrays, and am trying to find ways to avoid making lots of copies of the data. numexpr seems like it is smarter about this than a python engine would be.

[max-sixty]

Any idea if there is any plan to enable the numexpr engine like in the original comment

I don't think anyone is working on it. But we'd be very open to a contribution...