Convert Binary to Decimal in Python

Python Program to Convert Binary to Decimal Without Inbuilt Function

# Convert Binary to Decimal in Python
def binaryTodecimal(n):
	decimal = 0
	power = 1
	while n>0:
# Find the remainder of the given binary number.
    	rem = n%10
    	n = n//10
    	decimal += rem*power
# For every remainder multiply it with the power of 2.
    	power = power*2
   	 
	return decimal

print( binaryTodecimal(1111) )

Output:

15