Hello Marten,

I was suggesting not changing the shape at all, since dot/matmul/solve do the right thing already in such a case.

In my proposal, only for ndim >=2 do we switch the last two dimensions.

Ilhan is right that adding a special case for ndim=1 (error) adds programmer overhead, which is against the general philosophy of NumPy I feel.

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From: NumPy-Discussion <numpy-discussion-bounces+einstein.edison=gmail.com@python.org> on behalf of Marten van Kerkwijk <m.h.vankerkwijk@gmail.com>
Sent: Monday, June 24, 2019 3:24 PM
To: Discussion of Numerical Python
Subject: Re: [Numpy-discussion] Syntax Improvement for Array Transpose

Dear Hameer, Ilhan,

Just to be sure: for a 1-d array, you'd both consider `.T` giving a shape of `(n, 1)` the right behaviour? I.e., it should still change from what it is now - which is to leave the shape at `(n,)`.

Your argument about `dot` and `matmul` having similar behaviour certainly adds weight (but then, as I wrote before, my opinion on this changes by the second, so I'm very happy to defer to others who have a clearer sense of what is the right thing to do here!).

I think my main worry now is how to get to be able to use a new state without having to wait 4..6 releases...

All the best,

Marten