Pickling Frobenius endomorphism is broken

[xcaruso]

sage: k.<a> = GF(5^3)
sage: Frob = k.frobenius_endomorphism()
sage: Frob
Frobenius endomorphism a |--> a^5 on Finite Field in a of size 5^3
sage: loads(dumps(Frob))
Identity endomorphism of Finite Field in a of size 5^3

Component: finite rings

Author: Xavier Caruso

Branch/Commit: 16ce9e3

Reviewer: Travis Scrimshaw

Issue created by migration from https://trac.sagemath.org/ticket/29452

[xcaruso]

Branch: u/caruso/pickling_frobenius

[xcaruso]

comment:2

Here is a fix.

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New commits:

8f40b0a

fix pickling for Frobenius endomorphisms

[xcaruso]

Commit: 8f40b0a

[xcaruso]

Author: Xavier Caruso

[sagetrac-git]

Changed commit from 8f40b0a to cb588b8

[sagetrac-git]

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

cb588b8

fix pickling for embeddings

[sagetrac-git]

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

16ce9e3

add testsuite

[sagetrac-git]

Changed commit from cb588b8 to 16ce9e3

[tscrim]

Reviewer: Travis Scrimshaw

[tscrim]

comment:5

Indeed the domain should always be finite since it is a finite field morphism. LGTM.

[vbraun]

Changed branch from u/caruso/pickling_frobenius to 16ce9e3