spritesheets in pyqt spritesheets in pyqt

class PowerUp(QtGui.QGraphicsRectItem):

    def __init__(self):

        QtGui.QGraphicsRectItem.__init__(self)

        self.images = [‘data/images/objects/bonus_block/full-0.png’,

                       ‘data/images/objects/bonus_block/full-1.png’,

                       ‘data/images/objects/bonus_block/full-2.png’,

                       ‘data/images/objects/bonus_block/full-3.png’,

                       ‘data/images/objects/bonus_block/full-4.png’]

        self.image = self.images[0]

        self.current = 0

        self.position()

        self.timer = QtCore.QTimer()

        self.timer.timeout.connect(self.animation_step)

        self.timer.start(175)

        #random.choice([slide(), ghost()])

    def position(self):

        self.pos_x = random.randint(-300, 300)

        self.pos_y = random.randint(-200, 200)
    def boundingRect(self):

        return QtCore.QRectF(0, 0, 32, 32)
    def paint(self, painter, option, widget):

        painter.setBrush(QtGui.QBrush(self.image))

        painter.setPen(QtGui.QPen(QtCore.Qt.NoPen))

        painter.drawRect(0, 0, 32, 32)

        self.setPos(self.pos_x, self.pos_y)
    def animation_step(self):

        self.image = QtGui.QPixmap(self.images[self.current])

        self.current += 1

        if self.current == len(self.images):

            self.current = 0# -*- coding: utf-8 -*-

import sys

import time
from PyQt4 import QtGui, QtCore
class SpriteAnimation(object):

    def __init__(self, image_path, sprite_width, sprite_height, label):

        pixmap = QtGui.QPixmap(image_path)
        width, height = pixmap.width(), pixmap.height()

        self.pixmaps = []

        for x in range(0, width, sprite_width):

            for y in range(0, height, sprite_height):

                self.pixmaps.append(pixmap.copy(x, y,

                                                sprite_width, sprite_height))

        self._current_frame = 0

        self.label = label
    def play(self, interval=100):

        self._timer = QtCore.QTimer(interval=interval,

                                    timeout=self._animation_step)

        self._timer.start()

    def _animation_step(self):

        self.label.setPixmap(self.pixmaps[self._current_frame])

        self.label.update()

        self._current_frame += 1

        if self._current_frame >= len(self.pixmaps):

            self._current_frame = 0
class Window(QtGui.QWidget):

    def __init__(self, parent=None):

        QtGui.QWidget.__init__(self, parent)

        self.resize(100, 100)

        layout = QtGui.QVBoxLayout(self)

        label = QtGui.QLabel()

        layout.addWidget(label)

        # http://content.makeyourflashgame.com/pbe/tutorials/star-green.png

        self.animation = SpriteAnimation(‘star-green.png’, 80, 80, label)

        self.animation.play()
if __name__ == ‘__main__’:

    app = QtGui.QApplication(sys.argv)

    window = Window()

    window.show()

    sys.exit(app.exec_())