I am a newbie with python and optimization. I am getting some error, please help me resolve it. I tried running the below mentioned code in PyCharm where I am running Anaconda 3

from pulp import *
x = LpVariable("x", 0, 3)
y = LpVariable("y", 0, 1)
prob = LpProblem("myProblem", LpMinimize)prob += x + y <= 2prob += -4*x + ystatus = prob.solve(GLPK(msg = 0))value(x)

And I got an error

Traceback (most recent call last):File "D:/Projects/RH Analytics/RNN/TestPulp.py", line 10, in status = prob.solve(GLPK(msg = 0))File "C:\Users\rahul.bajaj\AppData\Local\Continuum\Anaconda3\lib\site-packages\pulp\pulp.py", line 1643, in solvestatus = solver.actualSolve(self, **kwargs)File "C:\Users\rahul.bajaj\AppData\Local\Continuum\Anaconda3\lib\site-packages\pulp\solvers.py", line 346, in actualSolveraise PulpSolverError("PuLP: cannot execute "+self.path) pulp.solvers.PulpSolverError: PuLP: cannot execute glpsol.exe

Process finished with exit code 1

So I downloaded the glpk package from here, extracted from the zip file and placed it in a folder in C drive. In the path variable I added "C:\winglpk-4.57\glpk-4.57\w64".

But even now I am getting the same error when i run the program in the PyCharm IDE. Please help me sort out what am I missing.

pulp.pulpTestAll()
When you run this command, a list of tests will run and on 32nd line you see:

Solver pulp.solvers.GLPK_CMD unavailable.

So try and download glpk-utils package then run

glpsol.

It can be done from cmd as well, worked for me.