Doctest failure from #21165

[videlec]

The deprecation warnings introduced in #21165 causes failures when the optional package gap_packages is installed

**********************************************************************
File "src/sage/coding/linear_code.py", line 3059, in sage.coding.linear_code.AbstractLinearCode.weight_distribution
Failed example:
    C.weight_distribution(algorithm="leon")   # optional - gap_packages (Guava package)
Expected:
    [1, 0, 0, 7, 7, 0, 0, 1]
Got:
    doctest:warning
    ...
    DeprecationWarning: code2leon is deprecated. Please use sage.coding.linear_code._dump_code_in_leon_format instead.
    See http://trac.sagemath.org/21165 for details.
    [1, 0, 0, 7, 7, 0, 0, 1]
**********************************************************************
File "src/sage/coding/linear_code.py", line 3365, in sage.coding.linear_code.AbstractLinearCode.zeta_polynomial
Failed example:
    C = best_known_linear_code(6,3,GF(2))  # optional - gap_packages (Guava package)
Expected nothing
Got:
    doctest:warning
    ...
    DeprecationWarning: best_known_linear_code has moved to sage.coding.databases.best_linear_code_in_guava
    See http://trac.sagemath.org/21165 for details.
**********************************************************************
File "src/sage/coding/databases.py", line 32, in sage.coding.databases.best_linear_code_in_guava
Failed example:
    codes.databases.best_linear_code_in_guava(10,5,GF(2))    # long time; optional - gap_packages (Guava package)
Exception raised:
    Traceback (most recent call last):
    ...
    TypeError: Gap produced error output
    Error, Variable: 'BestKnownLinearCode' must have a value

       executing \$sage1:=BestKnownLinearCode(10,5,GF(2));;
**********************************************************************
File "src/sage/coding/databases.py", line 82, in sage.coding.databases.bounds_on_minimum_distance_in_guava
Failed example:
    gap_rec = codes.databases.bounds_on_minimum_distance_in_guava(10,5,GF(2))  # optional - gap_packages (Guava package)
Exception raised:
    Traceback (most recent call last):
    ...
    RuntimeError: Gap produced error output
    Error, Variable: 'BoundsMinimumDistance' must have a value

       executing data := BoundsMinimumDistance(10,5,GF(2));

CC: @sagetrac-dlucas @sagetrac-jsm

Component: coding theory

Author: Johan Rosenkilde

Branch/Commit: dcec483

Reviewer: Volker Braun

Issue created by migration from https://trac.sagemath.org/ticket/21402

[johanrosenkilde]

Branch: u/jsrn/21402_linear_code_doctest_fails

[johanrosenkilde]

comment:4

Fixed. Two failures were simply calling functions deprecated in #21165. Two failures were due to no loading of optional Gap package Guava, which wasn't a problem before #21165 because that package seemingly was imported earlier in the testing of linear_code.py.

---

New commits:

dcec483

Explicit loading of Guava when needed. Change uses of deprecated functions

[johanrosenkilde]

Author: Johan Rosenkilde

[johanrosenkilde]

Commit: dcec483

[vbraun]

Reviewer: Volker Braun

[vbraun]

Changed branch from u/jsrn/21402_linear_code_doctest_fails to dcec483