Why does this code come up with a syntax error? What am I doing wrong? [closed]

I've tried to create a while loop to design a suburb. Device & House are classes that I made earlier in the code. For some reason i keep getting a syntax error (invalid syntax) for initialValue = len(Devices)...does anyone know what I'm doing wrong? Help would be very much appreciated, thanks.

Houses = [] 
Devices = []
Initial Value = 0
choice = ('Enter: e(X)it, (A)dd_house, (L)ist_house, (T)otal_usage...').uppper()
while choice [0] != 'X':
    if choice[0] == 'A':
        Num = input('enter house number: ')
        NR = input('enter number of residents: ')
        while choice2[0] != 'E' or choice != 'L':
            name = input('Device name: ')
            rating = input('Power rating: ')
            hop = input('Hours of operation: ')
            usage = int(hop)*int(rating)
            new_device = Device(name, rating,hop,usage)
            Device.append(new_device)
            choice2 = input('add_(D)evice,(E)nd_house,(L)ist_devices...').upper()
            if choice2[0] == 'E'
                Houses.append(House(Num,NR,Devices[initialValue:])
                initialValue = len(Devices)
            if choice2 [0] == 'L':
                Houses.append(House(Num,NR,Devices[initialValue:])
                initialValue == len(Devices)
                for house in Houses:
                    print(house)
    if choice [0] == 'L':
        for house in Houses:
            print(house)
    if choice [0] == 'T':
        total = 0
        for house in Houses:
            total += house.usage
    choice = input('e(X)it, (A)dd_house, (L)ist_houses, (T)otal_usage...').upper()

print('\nGOODBYE\n')