def check_builtin(option, opt, value):
    (cvt, what) = _builtin_cvt[option.type]
    try:
        return cvt(value)
    except ValueError:
        raise OptionValueError(
            (opt, what, value) % _("option %s: invalid %s value: %r"))
dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/optparse.py/check_builtin/swapped operands of `%`