Binary to Decimal.py

# Binary to Decimal converter
# Coded by: ZenOokami
# EssenceOfZen.org
#
# Uploaded to GitHub and EssenceOfZen.Org
# If you find this program on another site, Please contact: ZaneBlalock@EssenceOfZen.org

#Global Variables
version = 1.0.0

def binary_to_decimal(binary_list, binary_length):
    #We passed our list (array)
    index = 0
    power = binary_length - 1
    total = 0 #Decimal value

    while(power >= 0):
        total += (int(binary_list[index])) * (2**(power))
        index += 1
        power -= 1
    print(total)
    print("")
    


def main():
    #Get our Main loop ready
    loop = 0
    while(loop == 0):
        switch = 0
        while(switch == 0):
            binary_number = input("Please enter 8bit binary number: ")
            binary_number_list = list(binary_number)
            #print(binary_number)
            #print(binary_number_list)
            #print(binary_number_list[0])
            binary_length = len(binary_number_list)
            #print(binary_length)
            if(binary_length > 8):
                print("Please do not input a number longer than 8bits.")
                print("")
            else:
                for bit in binary_number_list:
                    if(int(bit) > 1 or int(bit) < 0):
                        print("Invalid binary number, only use 0's and 1's.")
                        print("")
                    else:
                        switch = 1

        #If all goes well
        binary_to_decimal(binary_number_list, binary_length)


main()