Is the dependency on tempita necessary? about interpolation.py

[albop]

@jan-janssen and @ysBach, there is no external dependency on tempita anymore. It is now shipped as a submodule.

[albop]

Of course it is feasible. Basically any templating engine with support for loops and basic python expressions would do. And speed is important as we are potentially generating very big expressions (when d>>1). I confess In don't know have strong views here. Do you have any suggestion or preference ?

[albop]

Nb :thé reason we do need a templating engine is because the source code of interpolating functions is basically generated at jit time (in splines.codegen I think)

[ysBach]

I am introduced to interpolation.py today while finding numba-implementation of interpolation. The installation couldn't be proceeded because of tempita.
If it is really necessary, how about just copy the snapshot of it and include it inside this package? I am not sure about the license of tempita though..

[ysBach]

Oh it's MIT (https://github.com/agramfort/tempita/blob/master/setup.py, https://pypi.org/project/Tempita/).

[jan-janssen]

@ysBach From my experience the conda-forge package should be compatible to Python 3.9 https://anaconda.org/conda-forge/interpolation .

[ysBach]

@jan-janssen Unfortunately I am using py 3.10 😢 and I get the following errors:

>  mamba install -c conda-forge tempita

Looking for: ['tempita']

conda-forge/osx-arm64                                5.3MB @   2.9MB/s  2.0s
conda-forge/noarch                                  11.3MB @   1.9MB/s  6.1s

Pinned packages:
  - python 3.10.*


Could not solve for environment specs
Encountered problems while solving:
  - nothing provides requested tempita

The environment can't be solved, aborting the operation

(similar error from conda: https://anaconda.org/conda-forge/tempita/files)