CODEWITHSUNDEEP
pythonpython-3.6
PurpleWombat
PurpleWombat

Reputation: 25

Converting a calculated decimal number into 8 bit binary

I am currently making a python program that is byte adder related, it will prompt the user to enter 2 integers, add them together and if it's within the range of the actual size of a byte (0 to 255) display that number and also give the corresponding value in its 8 bit binary form, for example, the calculation is equal to 1, show the binary number which python declares as the correct one.

This is the task that I am doing ~

"The program must check the input data for the data type permitted and the data value limitations (the value of the integer must not exceed the actual size of byte-coded integers, i.e. min 00000000 and max 11111111 in Base 2 or min 0 and max 255 in Base 10 for positive integers" Input in both binary and decimal format with conversion to binary

def add():
    Num1 = int(input("Input the first number between 0 and 255, the calculated answer must not be above 255: "))
    Num2 = int(input("Input the second number between 0 and 255, the calculated answer must not be above 255: "))

    calculatedanswer = Num1+Num2

    if calculatedanswer >= 0 and calculatedanswer <=255:
        print("The answer in decimal is" ,calculatedanswer,)

        **bin(calculatedanswer)**

    elif calculatedanswer < 0 and calculatedanswer >255:
        print("Please ensure the added numbers are above 0 and below 255")
        add()

This is my code so far, I have no trouble getting it to display the standard decimal number, but I really can't get the bin(calculatedanswer) to show the binary equivalent of it. I tried using this method that I found on YouTube.

I think my main problem here is my lack of understanding of how "bin" works on python as this is really the first time I am using it.

I have put asterisks around the line that I am having trouble with.

Upvotes: 2

Views: 30233

Answers (2)

Mark Tolonen
Mark Tolonen

Reputation: 177461

You do have to print the value:

>>> print(bin(160))  # This version gives the 0b prefix for binary numbers.
0b10100000
>>> print(format(160,'08b'))  # This specifies leading 0, 8 digits, binary.
10100000
>>> print('{:08b}'.format(160)) # Another way to format.
10100000
>>> print(f'{160:08b}')  # Python 3.6+ new f-string format.
10100000

Upvotes: 14

Loocid
Loocid

Reputation: 6441

One option for printing it would be to slice off the 0b portion of the result, which I assume is what you mean when you say you are having problems with the bin function.

Try this:

print(bin(calculatedanswer)[2:]))

Upvotes: 1

Related Questions