CODEWITHSUNDEEP
pythoncplexpulp
Austin Johnson
Austin Johnson

Reputation: 747

actualSolve raise PulpSolverError("CPLEX_PY: Not Available")

I am trying to run an optimization program using pulp and cplex I have installed cplex studio. I have change the path name as instructed

Name: Path
C:\Program Files\IBM\ILOG\CPLEX_Studio_Community129\cplex\python\3.7\x64_win64\cplex\_internal

but I am still receiving the error CPLEX_PY: Not Available. I was wondering if anyone else was able to solve this problem or what I'm missing.

Upvotes: 0

Views: 1361

Answers (1)

rkersh
rkersh

Reputation: 4465

At first, I thought you were trying to use the CPLEX_CMD solver, but I see that you want to use CPLEX_PY instead. The former relies on the CPLEX interactive (cplex.exe) being in your PATH environment variable. The later requires that you either install the CPLEX Python API or include it in your PYTHONPATH environment variable. Please see the documentation here for setting up the CPLEX Python API.

Based on what you have in your question, you could run setup.py like so:

cd "C:\Program Files\IBM\ILOG\CPLEX_Studio_Community129\cplex\python\3.7\x64_win64"
python setup.py install

Or, you could add the following to PYTHONPATH:

C:\Program Files\IBM\ILOG\CPLEX_Studio_Community129\cplex\python\3.7\x64_win64

See how to do this here.

In any case, you need to make sure that you can do the following from the python prompt:

>>> import cplex

Also, make sure you are using a 64-bit python.

Upvotes: 2

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