PAMS.py: A GAMS-Like Modeling System Based on Python and SAGE

Abstract

This paper presents an external module for the Python programming language and for the SAGE open source mathematical software, which allows the realization of models based on constrained optimization or non-linear systems. The module, which is freely available for download, allows describing the structure of a model using a syntax similar to that of popular modeling systems like GAMS, AIMMS or GEMPACK; in particular by allowing the automatic replication of equations, variable and parameter definitions on the basis of some specified sets.

Keywords: GAMS, Python, SAGE, AIMMS, CGE, Optimization Software, Applied Economic Modeling

JEL Classification: C63, C65, C68, C8