esptool.py 文件源码

def __call__(self, parser, namespace, values, option_string=None):
        try:
            value = {
                '2m': '256KB',
                '4m': '512KB',
                '8m': '1MB',
                '16m': '2MB',
                '32m': '4MB',
                '16m-c1': '2MB-c1',
                '32m-c1': '4MB-c1',
            }[values[0]]
            print("WARNING: Flash size arguments in megabits like '%s' are deprecated." % (values[0]))
            print("Please use the equivalent size '%s'." % (value))
            print("Megabit arguments may be removed in a future release.")
        except KeyError:
            value = values[0]

        known_sizes = dict(ESP8266ROM.FLASH_SIZES)
        known_sizes.update(ESP32ROM.FLASH_SIZES)
        if self._auto_detect:
            known_sizes['detect'] = 'detect'
        if value not in known_sizes:
            raise argparse.ArgumentError(self, '%s is not a known flash size. Known sizes: %s' % (value, ", ".join(known_sizes.keys())))
        setattr(namespace, self.dest, value)