gistfile1.py

today = datetime.datetime.now()
categoryNumber_list = Category.objects.all().values_list("categoryNumber",flat=True)
category_list = Category.objects.all()    
income_list = Income.objects.filter(date__year=today.year)
    
monthly_list = []
for i in categoryNumber_list:
        if int(i)<100:
            for j in range(1,13):
                temp_money = sum(Income.objects.filter(category__categoryNumber="%s" %i, date__year=today.year, date__month="%s" %j).values_list("money",flat=True))
                monthly_list.append(temp_money)
       else:
            for j in range(1,13):
                temp_money = sum(Outcome.objects.filter(category__categoryNumber="%s" %i, date__year=today.year, date__month="%s" %j).values_list("money",flat=True))
                monthly_list.append(temp_money)