Problems with Platypus package with the Binh and Korn function about platypus HOT 3 CLOSED

    problem.constraints[0] = "<=0"
    problem.constraints[1] = ">=0"

    x = vars[0]
    y = vars[1]

from platypus import NSGAII, Problem, Real

def telegundu(vars):
    x = vars[0]
    y = vars[1]
    return [4*x**2 + 4*y**2,(x-5)**2+(y-5)**2], [(x-5)**2+y**2-25, (x-8)**2+(y+3)**2-7.7]

problem = Problem(2, 2, 2)
problem.types[:] = [Real(0, 5), Real(0, 3)]
problem.constraints[0] = "<=0"
problem.constraints[1] = ">=0"
problem.function = telegundu

algorithm = NSGAII(problem)
algorithm.run(10000)

for solution in algorithm.result:
    print(solution.objectives)