def _process_pretty_options(self):
        if self.args.prettify == PRETTY_STDOUT_TTY_ONLY:
            self.args.prettify = PRETTY_MAP[
                'all' if self.env.stdout_isatty else 'none']
        elif self.args.prettify or self.env.is_windows:
            self.error('Only terminal output can be colorized on Windows.')
        else:
            # noinspection PyTypeChecker
            self.args.prettify = PRETTY_MAP[self.args.prettify]
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/httpie/input.py/Parser._process_pretty_options/operator `and` -> `or`