coverage: 99.719%. remained the same when pulling e1b00d6 on Transurgeon:adding-matrix-order into 45ccf4b on python-graphblas:main.

Thanks for starting on this @Transurgeon!

I would recommend adding implementation too. Ideally, you should test and verify what you did is needed and works as expected as you add order= arguments. Perhaps this also means adding my_matrix.orientation attribute too, or just using the existing my_matrix.ss.orientation attribute.

I would start with A.T.new(order="columnwise") and test that it works (add tests at the end of graphblas/tests/test_matrix.py).

Also, graphblas/core/utils.py:get_order will be helpful.

Hello @eriknw , sorry for the delay on this, I have been finishing up some details for my GSoC project.
I tried to implement the orientation today, however, it is working as planned.
I have added the argument to both Matrix.__new__ and TransposeMatrix.new(). I also called get_order like you recommended, but the test that I have added doesn't seem to pass like I would expect.
I am starting to get lost in the layers of OOP abstraction.
More importantly, I am also having problems when debugging due to the error below, do you have any ideas on how to fix this?

P.S Is the expectation to add property.getter/setter for .ss.orientation? I thought that could be a solution but wasn't sure if it was what you wanted.

No worries :) I was also traveling and mostly AFK last week.

I will take a closer look at this PR. As for the error, it looks like you're running from within the python-graphblas/graphblas directory (a builtin library is trying to import select, and it's picking up graphblas/select, which breaks). Try running from python-graphblas directory.

Hey, sorry for letting this sit. I was traveling and on vacation the last two weeks. I should have time to give this attention later this week.