Decimal to binary conversion in python

Question

Create a function called binary_converter. Inside the function, implement an algorithm to convert decimal numbers between 0 and 255 to their binary equivalents.

For any invalid input, return string Invalid input

Example: For number 5 return string 101
MY CODE:
binary=0
def binary_converter(data):
global binary
if data ==0:
return"invalid conversion"
elif data < 0:
return"input below 0 not allowed"
elif data > 255:
return"input above 255 not allowed"
else:
remainder= data%2
data/=2
binary=binary+(remainder*1)
return binary
can someone tell me whats wrong with my code

Answer 1

Base 10 to base 2 conversion is a recursive calculus: you have to divide the decimal number for a power-of-two and verify whether it is a multiple of two or not; if yes, the binary digit is 0, otherwise is 1.
Python doesn't recognize base 2 numbers as a type of data, and so a good compromise is to treat them as strings.
Here is a working implementation in Python:

def binaryConverter(decimalInteger, bitResolution):
binary = ""

n = 0
for n in range(bitResolution):
n = bitResolution - 1 - n
binary += str(decimalInteger // (2 ** n) % 2)

return binary

Answer 2

Check this out:
https://code.sololearn.com/c5HDM15OYc03/?ref=app

Answer 3

# There is a simpler conversion technique
# for any number in the range you are examining
bin(255)

#you could put it in your function if you want to experiment
# with formatting the output

def conv(num):
'''
1-gets binary representation
2-slices off prefix
3-prefixes with Zero's
'''
print(bin(num)[2:].zfill(8))

#test
conv(255)
conv(34)
conv(0)