Hasse-Weil Zeta function of hypersurfaces, deformation method

[edgarcosta]

We plan to add a wrapper for Sebastian pancratz's code, ​https://github.com/SPancratz/deformation

[edgarcosta]

Here is a preliminary version of the wrapper: ​https://github.com/edgarcosta/deformation/commit/273ecbb43f6ce28cc0c025c07e40e1dc6eb708a4

[jpflori]

Updated code at: ​https://github.com/jpflori/deformation and hackish binding at: ​https://github.com/jpflori/pydeformation

[jpflori]

Created #23466 to add some bindings for flint.

[jpflori]

Wrapper should now be pip installable.

[edgarcosta]

This should be closed down. See #23498

[jpflori]

I think we should still do the pypi package a sage's optional package (with a folder in build/pkgs), just like cysignals.

[edgarcosta]

I don't follow. Isn't pydeformation a PyPI package?

[kedlaya]

Can someone in the know clarify the status of this? Is this now made redundant by other tickets?

[jpflori]

At the moment we have:

• Sebastian C code as an optional package,
• my skinny wrapper as a pip installable package.

So the installation procedure is:

• ./sage -i deformation to install the former
• ./sage -python pip install pydeformation for the latter (or maybe ./sage -pip ...)

I'd say it would be nice to make pydeformation a sage optional package so that you can use Sage dependency system to just do

• ./sage -i pydeformation and that it automagically installs the optional deformation C library first.

As deformation is a C library (of interest without the wrapper), I don't want to ship it within the wrapper, nor would it be a good idea to make it a pip installable thing (to be able to use pip dependency system).

[edgarcosta]

Would it make sense to create a meta package that depends on both of those packages?

[jpflori]

You mean a Sage package? I don't see the point, can you give further details?

Note that when I say a sage optional package for pydeformation I really mean just creating a folder in build/pkg with simple spkg-install script as for cysignals.

[edgarcosta]

Yes, I meant a Sage package. It was just a quick (and perhaps dirty) way to get deformation and pydeformation in sage.

Anyhow, I have no experience with sage packages. But let me know if there is anything I can do to help you.

[jpflori]

Nah I just need to find one hour to make a branch. Should be ok by the end of the week.

[roed]

Replying to jpflori:

Nah I just need to find one hour to make a branch. Should be ok by the end of the week.

Ping.

[jpflori]

Long. Work and life took over... Hopefully I ll get to it soon.

[kedlaya]

Ping. Doesn't look like the underlying code has been touched since this ticket was created.