PuLP: A Linear Programming Toolkit for Python

← Back to document page

PuLP: A Linear Programming Toolkit forPythonStuart Mitchell ,Stuart Mitchell Consulting,Michael O Sullivan,Iain DunningDepartment of Engineering Science, The University of Auckland, Auckland, New ZealandSeptember 5, 2011AbstractThis paper introduces the PuLP library, an open source package that allows math-ematical programs to be described in the Python computer Programming lan-guage. PuLP is a high-level modelling library that leverages the power of thePython language and allows the user to create programs using expressions thatare natural to the Python language, avoiding special syntax and keywords wher-ever IntroductionPuLP is a library for the Python scripting language that enables users to describemathematical programs.

Now we have a problem and some variables, we can define the objective and constraints. The model is built up by literally adding expressions. In Python and many other programming languages, the operator in a+=bis shorthand for “assign the value of a+bto a”. Here prob+=expressionadds the expressionto the LpProblemas an objective function or ...