Change attributes of object handles from python in Matlab

Hello,

is there any possibility of updating/changing the attributes of a Matlab object handle from python without creating a set function?

I mean, to read the attributes it can be done using the wrokspace as follows:

eng.workspace['wx'] = x
height = eng.eval['wx.height']

This will return the height of the object x. Is there any other way of changing the height? I ask this because I should not change the script from which I am using the values and objects

Thanks!