On 3/30/2010 11:13 AM, aditya wrote: > To get the decimal representation of a binary number, I can just do > this: > > int('11',2) # returns 3 > > But decimal binary numbers throw a ValueError: > > int('1.1',2) # should return 1.5, throws error instead. > > Is this by design? It seems to me that this is not the correct > behavior. >
Well technically that would be a 'radix point', not a decimal point. But I think the problem is that computers don't store fractional values that way internally. They either use floating or fixed point math. You would never look at raw binary data on a computer and see something like '1010.1010', and no one would write it that way, and no language (that I know of) would accept that as a valid value if you did something like "x = 0b1010.1010" So in that sense, it might not be an intentional oversight, but it's not a very practical or useful feature. -- http://mail.python.org/mailman/listinfo/python-list