Improvements to GLPK configuration for MIPs

opencobra / optlang

optlang - sympy based mathematical programming language

http://optlang.readthedocs.org/

Apache License 2.0

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Closed cdiener closed 3 years ago

cdiener commented 3 years ago

[X] fix #223
[X] description of feature/fix
- enables setting the integrality threshold for GLPK again
- changes the default for presolving for MIP problems in GLPK This is now the same default as in GLPK and is recommended since the MIP solver becomes very unstable otherwise.
- made glpk_interface.py pep8 compliant
[X] tests added/passed
[X] add an entry to the next release

cdiener commented 3 years ago

Yeah and flake8 complained about that.