Originally posted by: SystemAdmin

The constraint I wrote in opl is like this:
(sum(i in 1..NCOL) x[i] * edv[i]) - 0.166 * (sum(i in 1..NCOL) x[i] * edn[i]) <= 0;

the code below is what I trying to do in python, It does't work.
when i =0 the edvalue *assignvars = 0 * 'x0'='', I don't know if this '' would be recognized as the correct to add the constraint.

>>> ednumber0:10
1, 1, 1, 1, 1, 1, 1, 1, 1, 1
>>> edvalue0:10
0, 0, 0, 1, 0, 0, 0, 0, 0, 0
>>> assignvars0:10

for i in range(NCol):
thevars=[]
thevars.append(edvalue[i]*assignvars[i])
thecoef=http://-0.166

thevars.append(assignvars[i]*ednumber[i])
thecoef.append(1)
lin_values = http://cplex.SparsePair(thevars,thecoef)

vrp.linear_constraints.add(lin_expr = lin_values, senses = , rhs = [0])
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

sorry guys ,the issue is solved :

thevars = []
thecoef = []
for i in range(NCol):

e=edvalue[i]
thevars.append(assignvars[i])
thecoef.append(edvalue[i] - 0.166 * ednumber[i])

#thevars.append(assignvars[i]*ednumber[i])
#thecoef.append(1)
print "vars OK"
lin_values = http://cplex.SparsePair(thevars,thecoef)
print "sparse OK"
#print lin_values
vrp.linear_constraints.add(lin_expr = lin_values, senses = , rhs = [0])
print "linear OK"
#vrp.linear_constraints.get(0)
#CPLEXOptimizers
#DecisionOptimization