import sys

from PySide2 import QtCore, QtGui, QtWidgets
from PySide2.QtNetwork import QNetworkProxy, QNetworkProxyFactory
from PySide2.QtWebEngineWidgets import QWebEngineView


class DisplaySVG(QtWidgets.QWidget):
    "A simple SVG display."
    def __init__(self, url=None, parent=None):
        super().__init__(parent)
        self.resize(800,600)
        self.verticalLayout = QtWidgets.QVBoxLayout(self)
        self.webview = QWebEngineView(self)
        self.verticalLayout.addWidget(self.webview)

        self.setWindowTitle("Display SVG")
        act = QtWidgets.QAction("Close", self)
        act.setShortcuts([QtGui.QKeySequence(QtCore.Qt.Key_Escape)])
        act.triggered.connect(self.close)
        self.addAction(act)

        svg = '''




        '''

        self.webview.setHtml(svg)

qt_app = QtWidgets.QApplication(sys.argv)
disp = DisplaySVG()
disp.show()
qt_app.exec_()