sage.tensor.modules.free_module_basis: Make Basis_abstract a subclass of AbstractFamily

[mkoeppe]

... in particular provide an implementation of the keys() method.

We also add a generic method AbstractFamily.items() to complement the methods keys() and values(), mimicking the Mapping protocol. (Split out from #34340.)

CC: @mjungmath @egourgoulhon @tscrim

Component: linear algebra

Author: Matthias Koeppe

Branch/Commit: 66874a9

Reviewer: Eric Gourgoulhon

Issue created by migration from https://trac.sagemath.org/ticket/30300

[mkoeppe]

comment:2

Any help with implementing this would be very welcome

[mkoeppe]

comment:3

Setting new milestone based on a cursory review of ticket status, priority, and last modification date.

[mkoeppe]

Changed dependencies from #30287, #30259 to #30287, #30259, #34340

[mkoeppe]

Changed dependencies from #30287, #30259, #34340 to #30287, #34340

[mkoeppe]

Branch: u/mkoeppe/sage_tensor_modules_free_module_basis__make_basis_abstract_a_subclass_of_family

[mkoeppe]

New commits:

78400bc	AbstractFamily.{keys,values,items}: New
d2e4466	src/sage/sets/family.py: Add missing import
d15bd7d	src/sage/tensor/modules/free_module_basis.py: Make Basis_abstract a subclass of AbstractFamily

[mkoeppe]

Commit: d15bd7d

[mkoeppe]

Author: Matthias Koeppe

[mkoeppe]

Changed dependencies from #30287, #34340 to none

[sagetrac-git]

Changed commit from d15bd7d to eeba29a

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

eeba29a

src/sage/tensor/modules/free_module_basis.py: Add documentation

[mkoeppe]

comment:14

sage -t --random-seed=263111727722887782759446361100915924402 sage/manifolds/differentiable/chart.py  # 2 doctests failed
sage -t --random-seed=263111727722887782759446361100915924402 sage/manifolds/differentiable/vectorframe.py  # 2 doctests failed
sage -t --random-seed=263111727722887782759446361100915924402 sage/manifolds/local_frame.py  # 2 doctests failed

[sagetrac-git]

Changed commit from eeba29a to 5936c6b

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

5936c6b

src/sage/manifolds: Update doctest outputs

[egourgoulhon]

comment:16

Could you please remind me what is the purpose of this ticket? In particular, why should bases of a FiniteRankFreeModule have a keys() method?