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7ea8e20623
It was always a bit ridiculous that argparse required `X-longflag` if that "X" short flag was never actually used anywhere. Since the short letter is for getopt's benefit, we can hack around this with our old friend: Unicode Private Use Areas. We have a counter, starting at 0xE000 and going to 0xF8FF, that counts up for all options that don't have a short flag and provides one. This gives us up to 6400 long-only options. 6.4K should be enough for everybody.