def calculatingAverageValue(self,stockNameList, returnValue, WindowSize): averageValue = {} for name in stockNameList: ##Calculating average value that represents (return value(as many as WindowSize)) / WindowSize averageList = [] windowForCalculation = returnValue[name][0:WindowSize] average2 = CalculationTool.average(windowForCalculation) averageList.append(average2) averageValue[name] = averageList return averageValue