[sage-support] Coercion question

[Not sure if this belongs here or in sage-dev...] I am trying to implement coercions between algebras that are related by base change. For example,consider A=CombinatorialFreeModule(ZZ['x'], ['1','2']) B=CombinatorialFreeModule(ZZ, ['1','2']) A.module_morphism( lambda a: B._from_dict({b: c.s

Re: [sage-support] Re: Fail in installing both sage-numerical-backends-gurobi and sage-numerical-backends-coin

My sage version is 10.3, and here is my error log : Collecting sage-numerical-backends-gurobi Using cached sage_numerical_backends_gurobi-10.4.tar.gz (27 kB) Installing build dependencies ... done Getting requirements to build wheel ... done Preparing metadata (pyproject.toml) ... done Requ