binary_to_decimal-Arfain.py

# Python3 program to convert 
# binary to decimal 

# Function to convert 
# binary to decimal 
def binaryToDecimal(n): 
	num = n; 
	dec_value = 0; 
	
	# Initializing base 
	# value to 1, i.e 2 ^ 0 
	base = 1; 
	
	temp = num; 
	while(temp): 
		last_digit = temp % 10; 
		temp = int(temp / 10); 
		
		dec_value += last_digit * base; 
		base = base * 2; 
	return dec_value; 

# Driver Code 
num = 10101001; 
print(binaryToDecimal(num)); 

# This code is contributed by mits