运行总计Python：“ TabError：缩进中的制表符和空格使用不一致”

Question

我在运行代码时收到此错误，并且不知道为什么如果一切都正确缩进，我的运行总计将无法工作。这是我得到的错误：

totalRooms += rooms
                  ^
TabError: inconsistent use of tabs and spaces in indentation

这是我的程序：

def main():

    developerInfo()

    totalFloors = int(input('Enter the number of floors in the hotel: '))
    totalRoomsOccupied = 0
    totalRoomsUnoccupied = 0
    totalRooms = 0



    for hotelRateLoop in range(totalFloors):


        rooms = int(input('Enter the number of rooms on the floor: '))
        roomsOccupied = int(input('Enter the number of rooms occupied: '))
        roomsUnoccupied = int(rooms - roomsOccupied)


        totalRooms += rooms
        totalRoomsOccupied += roomsOccupied
        totalRoomsUnoccupied += roomsUnoccupied

    occupancyRate = float(totalRoomsOccupied / totalRooms)

    print('Total number of rooms: ' + str(totalRooms))
    print('Total number of rooms occupied: ' + str(totalRoomsOccupied))
    print('Total number of rooms unoccupied: ' + str(totalRoomsUnoccupied))
    print('Occupancy Rate: ' + format((occupancyRate * 100), '.2f') + '%')