[SciPy-User] coby-la in optimize package - constraints ignored, is this a bug?

[Hugo Shi]

This code returns 257, which is a violation of the constraint.  Is this
a bug? or am I doing something stupid?

thanks!

import numpy as np
import scipy as sp
import scipy.optimize

def myfunc(x):
    return -x[0]**2

def constraints(x):
    if x[0]>10:
        return -1.0
    else:
        return 1.0

retval=scipy.optimize.fmin_cobyla(myfunc,np.array([0]),constraints)