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I built my first GAMS code, but I don't know how to transfer the results from the lst file to Python in order to process. If anyone could help with the issue I would be very grateful. For example, for the transportation problem how can I transfer the total cost and the shipment quantities in a Python project?

$Title A Transportation Problem (TRNSPORT,SEQ=1) $Ontext

This problem finds a least cost shipping schedule that meets requirements at markets and supplies at factories.

Dantzig, G B, Chapter 3.3. In Linear Programming and Extensions. Princeton University Press, Princeton, New Jersey, 1963.

This formulation is described in detail in: Rosenthal, R E, Chapter 2: A GAMS Tutorial. In GAMS: A User's Guide. The Scientific Press, Redwood City, California, 1988.

The line numbers will not match those in the book because of these comments.

$Offtext

Sets i canning plants / seattle, san-diego / j markets / new-york, chicago, topeka / ;

Parameters

   a(i)  capacity of plant i in cases
     /    seattle     350
          san-diego   600  /

   b(j)  demand at market j in cases
     /    new-york    325
          chicago     300
          topeka      275  / ;

Table d(i,j) distance in thousands of miles new-york chicago topeka seattle 2.5 1.7 1.8 san-diego 2.5 1.8 1.4 ;

Scalar f freight in dollars per case per thousand miles /90/ ;

Parameter c(i,j) transport cost in thousands of dollars per case ;

        c(i,j) = f * d(i,j) / 1000 ;

Variables x(i,j) shipment quantities in cases z total transportation costs in thousands of dollars ;

Positive Variable x ;

Equations cost define objective function supply(i) observe supply limit at plant i demand(j) satisfy demand at market j ;

cost .. z =e= sum((i,j), c(i,j)*x(i,j)) ;

supply(i) .. sum(j, x(i,j)) =l= a(i) ;

demand(j) .. sum(i, x(i,j)) =g= b(j) ;

Model transport /all/ ;

Solve transport using lp minimizing z ;

Display x.l, x.m ;

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