Allow passing static shape to tensor creation helpers

[ricardoV94]

Closes #61

Major / Breaking Changes

• pytensor.tensor.tensor now accepts name as the only positional argument. All other arguments must be provided via keyword

New features

• Tensor creator helpers now accept static input shapes (e.g., pt.matrix(shape=(10, None)))

[ferrine]

Happy with the changes!

[michaelosthege]

I found one thing in a test

generally I'm worried that the breaking change to require explicit kwargs will cause a lot of things to break downstream.

Requiring shape to be an explicit kwarg (but not dtype) should be much smoother, no?

[ricardoV94]

Requiring shape to be an explicit kwarg (but not dtype) should be much smoother, no?

The reason for that was that tensor behaved differently. tensor accepted dtype as the first positional argument, and name as kwarg only, whereas all other constructors accepted name as the first positional argument, followed by dtype.

[ricardoV94]

For context, I was going just for the first commit in this PR, which is backwards compatible, and @ferrine asked we made tensor have the same API as the rest.

[ferrine]

Yes, I believe uniform API is much better long term, and since we anyway just made the fork, we better make these changes sooner than later

[michaelosthege]

Okay, I just checked the PyMC codebase and found no places where it would actually break.

[codecov-commenter]

Codecov Report

Merging #118 (7b621c4) into main (16d1cbe) will increase coverage by 0.04%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #118      +/-   ##
==========================================
+ Coverage   74.41%   74.46%   +0.04%     
==========================================
  Files         179      179              
  Lines       49249    49282      +33     
  Branches    10422    10432      +10     
==========================================
+ Hits        36649    36696      +47     
+ Misses      10295    10282      -13     
+ Partials     2305     2304       -1     

Impacted Files	Coverage Δ
pytensor/sparse/basic.py	82.53% <ø> (ø)
pytensor/sparse/rewriting.py	75.51% <ø> (ø)
pytensor/tensor/basic.py	89.95% <100.00%> (ø)
pytensor/tensor/blas.py	79.67% <100.00%> (ø)
pytensor/tensor/io.py	78.15% <100.00%> (ø)
pytensor/tensor/math.py	90.40% <100.00%> (ø)
pytensor/tensor/shape.py	91.74% <100.00%> (ø)
pytensor/tensor/type.py	94.19% <100.00%> (+3.24%)	⬆️
pytensor/graph/basic.py	88.13% <0.00%> (+0.03%)	⬆️
pytensor/scalar/basic.py	79.10% <0.00%> (+0.08%)	⬆️
... and 2 more