'The value associated with the keyword stored in this card.'

@property
def value(self):

    if self.field_specifier:
        return float(self._value)
    if (self._value is not None):
        value = self._value
    elif ((self._valuestring is not None) or self._image):
        self._value = self._parse_value()
        value = self._value
    else:
        self._value = value = ''
    if (conf.strip_header_whitespace and isinstance(value, string_types)):
        value = value.rstrip()
    return value
