Generic self assignation in class

Question

How can i assign a specific value for a generic variable name in a object (auto correction purpose)

something like this

# assignation failing (no modification of "pointed" attribut)
for Attribut in [ self.Src, self.Dst, self.Center ] :
     if ( type( Attribut ) != cPointXY ) :
        Attribut = cPointXY( Attribut )
print( "Result generic : ", self.__dict__ )

# working code        
if ( type( self.Src ) != cPointXY ) :
   self.Src = cPointXY( self.Src)

print( "Result direct : ", self.__dict__ )

showing that , if self.src is treated in direct it works but generic not due to variable attribut modification, attribut is a copy and not the original variable.

How can i reach the self.Src from his name 'Src' ? dict_ give me the direct value or type but i can't modify this directly.

Precision: it's in the init so getattr/setattr don't work normaly yet a this level

--------- after some other test, setattr work (bug earlier in code) --- so solution is (quick and dirty but not the purpose)

 for Attribut in [ "Src", "Dst", "Center" ] :
     TypeAttribut = self.__dict__[ Attribut ]
     if ( TypeAttribut != cPointXY ) :
        setattr( self, Attribut, cPointXY( getattr( self, Attribut ) ) )