Provide an SCSCP interface

[slelievre]

The Symbolic computation software composability protocol (SCSCP) is a generic open protocol for communication between math software systems.

• Home page: ​http://www.openmath.org/standard/scscp/

• Specification: ​https://github.com/OpenMath/scscp/tree/master/revisions

• C/C++ library interface libscscp: ​https://www.imcce.fr/trip/scscp/

• Python package py-scscp:
  • on PyPI: ​https://pypi.org/project/scscp/
  • on GitHub: ​https://github.com/OpenMath/py-scscp

To use in Sage:

sage --pip install scscp

See also:

• #19970 "Provide an OpenMath interface".

Both tickets would improve interoperability of SageMath and other mathematics software (both ways: accessing other software from Sage, and accessing Sage from other software).

• OpenDreamKit issue 62: SCSCP interfaces: ​https://github.com/OpenDreamKit/OpenDreamKit/issues/62

[slelievre]

Add link to SCSCP specification.

[mkohlhase]

There is an effort under way to implement SCSCP interface for python at ​https://github.com/OpenMath/py-scscp This seems to be making progress. This should be a good basis.

[defeo]

A pip-installable package is available here: ​https://github.com/OpenMath/py-scscp.

It contains a command-line synchronous client, base classes to implement a server, and a (pure-python) demo server exposing a very limited content dictionary.

At this point, client support for SCSCP can be considered done for Sage (modulo bugs). We may have to decide whether to make an spkg or not, but sage -pip scscp is probably good enough.

True server support requires #19970, and this is a long way coming.