Hi, I'm new to Python, and found some problems on the internet that would be a good start to begin. The problem I have is that my conversion program (which currently only converts unsigned integers) also prints all these brackets and commas. Here is my code and the result: CODE: print "" print "--------------------" print "Unsigned Binary" print "--------------------" print "" n = int(raw_input("Please enter an integer: ")) b = '' while n > 0: r = n%2 n = n/2 b = r,b print b (ex: n = 15) RESULT: (1, (1, (1, (1, '')))) I think the problem is in the line of code 'b = r,b', but am not sure how to fix it. The tip given for the problem says I should 'append' r to b, but since b is not a list, 'b = r,b' was the only thing that came to my mind. Thanks in advance.