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README.rst

GAMS Python API

https://dev.azure.com/kavvkon/kavvkon/_apis/build/status/kavvkon.gams-api?branchName=master

This repository hosts various GAMS' Python libraries which are used to access and modify the .gdx data files, and execute GAMS within Python. The main purpose is to compile them, package them and distribute them via PyPI so that it can be installable via pip and used as a dependecy in other packages. Detailed documentation of how to use these libraries can be found in the GAMS API documentation section.

Update: Python 3.8 wheels are included for all platforms. All builds have been moved to azure pipelines as it allows easier cross-platform maintainance.

Background

This module is distributed for free by 'GAMS Development Corp' in the official website along with GAMS software. According to the license agreement, its use does not require the presence of a GAMS license file. Moreover it can be modified and redistributed for free.

However there is no easy way to install it without installing the whole gams suite and running the setup.py file in the corresponding directory and compiling the C extensions.

What is included

As a first step the directories gdxcc, optcc and gamsxcc collect the python source files along with the necessary C extensions from GAMS version 24.9.2. GAMS includes also the compiled C extensions (.so) but they are dependent on the platform and the python version and not include here. The setup.py file has been modified to use the setuptools package which allows the distribution of binary wheels (bdist) for different python versions and platforms. The source (sdist) is uploaded in Pypi and should work with all platforms and python versions.

Azure pipelines are used to compile the packages and create the 'wheels' for various platforms and python versions according to the following Table:

  macOS 10.6+ intel macOS 10.9+ x86_64 manylinux i686 manylinux x86_64 Windows 32bit Windows 64bit
2.7  
3.5  
3.6  
3.7  
3.8  

The package cibuildwheel is used to automate this task. All wheels are uploaded to PyPI.

Install

GDX API (GAMS Data Exchange Object) : pip install gdxcc

GAMSx API (GAMS Execution Object): pip install gamsxcc

OPT API (GAMS Option Object): pip install optcc

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Re-distribution of GAMS API source files for Python

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