'QString' object does not support item assignment

Question

There is something similar to this but I am still confused about it.

Here is the part of the code:

class General(Component):
    def __init__(self, localvars,globalvars,coupledvars,outputvars,equation):

        self.loc = localvars

        for i in range(0,len(localvars)):
            localvars[i] = Float(1.0, iotype='in')
        print localvars