.mps and .sol imports for python wrapper

[silvioba]

What language and solver does this apply to?
Python, C++ / CP-SAT

Describe the problem you are trying to solve.
It would be very handy to be able to import mps (.mps) files and a solution hint (.sol) files into the python wrapper

Describe the solution you'd like
I am thinking about a new method for the class CpModel (or maybe a constructur) which takes a filepath for a .mps file and optionally a filepath for a .sol file

Describe alternatives you've considered
Currently I just launch the cpp program directly (from within python) with these flags, but then have to import the solution again, which is suboptimal.

[lperron]

you can import MPS with model_builder.
I have not added support for .sol.

Using the CP-SAT api is not recommended as it mostly does not support floating point except for coefficient objectives.
The translation is performed if you use any linear solver wrapper (MpSolver, model_builder, math_opt).

[silvioba]

I just saw the WriteModelToMpsFile in v9.12. Thanks.
What is your suggestion for the best practice in importing an existing solution? (can be in a .csv or .sol)

[lperron]

ParseSolFile is implemented in C++ but it is not wrapped in python or any non C++ language.