On Mon, Feb 17, 2020 at 3:40 AM Mark Dickinson <mdickinson@enthought.com> wrote:
ananthakrishnan15.2001ï¼ gmail.com wrote:
binary.twos_complement(0b0011)==1101 binary.twos_complement(0b00000011)==11111101
How would you make that possible, when `0b0011` and `0b00000011` are the exact same integer?
Easy: you simply have 0b1101 and 0b11111101 actually be display phenomena. Both of them represent -3 in a particular field size. Unfortunately the built-in bin() function doesn't take a width argument, but you can easily create that: def binary(n, width=None): if width: return format(n & (1<<width) - 1, "0%db" % width) return format(n, "b") Now you can ask for any number's binary representation in a field of N bits, negative numbers included. With that added, you can now use Python's ordinary integers. In fact... import sys sys.displayhook = lambda val: print(binary(val, 8)) if type(val) is int else print(val) Tada! Now your REPL works with eight-bit binary values. ChrisA