GAMSPy 0.12.1

• General

  • Fix dataframe column names of GAMS MIRO input tables.

  • Catch solve status errors and throw necessary exceptions.

  • __pow__ returns sqrt instead of rPower if the exponent is 0.5.

  • Deprecate delayed_execution mode.

  • Replace pylint, flake8 and black with ruff.

  • Implement /api/auth -> post, /api/auth/login -> post and /api/auth/logout -> post for GAMS Engine.

  • Allow dumping log file to arbitrary path.

  • Allow dumping listing file to arbitrary path.

  • Allow dumping gdx file to arbitrary path.

  • Disallow equation definitions without any equality sign.

  • Add calculate_infeasibilities function for variables, equations and models.

  • Add ‘gamspy show license’, and ‘gamspy show base’ commands.

• Testing

  • Replace PandasExcelReader and PandasExcelWriter with new ExcelReader and ExcelWriter from GAMS Connect correspondingly.

  • Add a new model (Nurses) to the model library and the Notebook examples.

  • Add an AC optimal power flow (ACOPF) model to the model library.

  • Add a test to verify the generated string for power where the exponent is 0.5.

  • Add tests for /api/auth.

  • Add a test for creating log file with arbitrary name.

  • Add a test for creating lst file with arbitrary name.

  • Add a test for creating gdx file with arbitrary name.

  • Add tests for infeasibility calculations.

• Documentation

  • Remove FAQ about Google Colab (it is resolved) and add FAQ about Windows Defender.

  • Remove documentation for delayed execution mode.

  • Add an example for providing solver options.

  • Document CLI for gamspy show commands.