no need to to mmaths(no need maths(specify value for for specify value subtract( , subtract( , self,selfpython doesdoes python this this automatically automatically add( , add( , using class funcdons from inside class calling funcdons in classes when referring to funcdons from within classwe must always prefix the funcdon name with self unctions from inside class functions from inside class ( self subtract()to functions ring to functions classa classs prefix thethe ways prefix withwith self me self ract()subtract(class mathsclass mathsdef def subtract(self, , )subtract(self, , )return - - return def def testsub(self)testsub(self)print self subtract( , print self subtract( , tell tell python to use function python to use function associated withwith this this object associated object