这个Python类看起来很愚蠢吗？

Question

我正在尝试将我用PHP编写的东西移植到Python中,主要是为了更好地学习语言.有问题的代码是SWF解析器.在PHP中,我将所有数据结构声明为类.我试图在Python中做同样的事情,但似乎没有一种明确的方式来声明一个类变量.所以我最终得到了许多看起来像这样的类:

class SWFRGBA(object):
    red = 0
    green = 0
    blue = 0
    alpha = 0

Pythoners真的写这样的东西吗？

[编辑]

让我发布一些实际代码来说明问题.下面的函数读取SWF文件中的矢量形状.readUB(),readSB()读取一定数量的位,解释它们无符号或有符号.有时,给定字段所需的位数本身是从比特流中读取的.可能会出现三种类型的记录:直边,二次曲线或样式更改.样式更改记录可能会移动笔位置,更改线型索引,更改两个填充样式索引之一或替换样式数组.

protected function readShapeRecords($numFillBits, $numLineBits, $version, &$bytesAvailable) {
    $records = array();
    while($bytesAvailable) {
        if($this->readUB(1, $bytesAvailable)) {
            // edge
            if($this->readUB(1, $bytesAvailable)) {
                // straight
                $line = new SWFStraightEdge;
                $line->numBits = $this->readUB(4, $bytesAvailable) + 2;
                if($this->readUB(1, $bytesAvailable)) {
                    // general line
                    $line->deltaX = $this->readSB($line->numBits, $bytesAvailable);
                    $line->deltaY = $this->readSB($line->numBits, $bytesAvailable);
                } else {
                    if($this->readUB(1, $bytesAvailable)) {
                        // vertical
                        $line->deltaX = 0;
                        $line->deltaY = $this->readSB($line->numBits, $bytesAvailable);
                    } else {
                        // horizontal 
                        $line->deltaX = $this->readSB($line->numBits, $bytesAvailable);
                        $line->deltaY = 0;
                    }
                }
                $records[] = $line;
            } else {
                // curve
                $curve = new SWFQuadraticCurve;
                $curve->numBits = $this->readUB(4, $bytesAvailable) + 2;
                $curve->controlDeltaX = $this->readSB($curve->numBits, $bytesAvailable);
                $curve->controlDeltaY = $this->readSB($curve->numBits, $bytesAvailable);
                $curve->anchorDeltaX = $this->readSB($curve->numBits, $bytesAvailable);
                $curve->anchorDeltaY = $this->readSB($curve->numBits, $bytesAvailable);
                $records[] = $curve;
            }
        } else {
            $flags = $this->readUB(5, $bytesAvailable);
            if(!$flags) {
                break;
            } else {
                // style change
                $change = new SWFStyleChange;
                if($flags & 0x01) {
                    $change->numMoveBits = $this->readSB(5, $bytesAvailable);
                    $change->moveDeltaX = $this->readSB($change->numMoveBits, $bytesAvailable);
                    $change->moveDeltaY = $this->readSB($change->numMoveBits, $bytesAvailable);
                }
                if($flags & 0x02) {
                    $change->fillStyle0 = $this->readUB($numFillBits, $bytesAvailable);
                }
                if($flags & 0x04) {
                    $change->fillStyle1 = $this->readUB($numFillBits, $bytesAvailable);
                }
                if($flags & 0x08) {
                    $change->lineStyle = $this->readUB($numLineBits, $bytesAvailable);
                }
                if($flags & 0x10) {
                    $change->newFillStyles = $this->readFillStyles($version, $bytesAvailable);
                    $change->newLineStyles = $this->readLineStyles($version, $bytesAvailable);
                    $change->numFillBits = $numFillBits = $this->readUB(4, $bytesAvailable);
                    $change->numLineBits = $numLineBits = $this->readUB(4, $bytesAvailable);
                }
                $records[] = $change;
            }
        }
    }
    $this->alignToByte();
    return $records;
}

Answer 1

如果您只想要包含大量属性的实例,则应使用namedtuple