import sys
from PyQt4.QtGui import *
from PyQt4 import QtCore, QtGui
from PyQt4.QtSvg import QSvgWidget
#from PyQt4.QtGui import QApplication, QGraphicsScene, QGraphicsView
#from PyQt4.QtWebKit import QGraphicsWebView
app_created = False
app = QtCore.QCoreApplication.instance()
if app is None:
app = QtGui.QApplication(sys.argv)
app_created = True
app.references = set()
widget = QSvgWidget("circle_star.svg")
widget.resize(500, 500)
widget.setWindowTitle("Hello SVG!")
app.references.add(widget)
widget.show()
if app_created:
app.exec_()
