Pyqt4 tutorial implements translucent weather forecast interface example

# -*- coding: cp936 -*-
import sys
import urllib2
import json
from PyQt4 import QtCore, QtGui
class MyWindow( QtGui.QLCDNumber,QtGui.QWidget):
    def __init__(self, parent=None):
        super(MyWindow,self).__init__(parent)

        self.setWindowTitle("weather")
        self.resize(100,40)
        self.setNumDigits(0)
        self.setWindowFlags(QtCore.Qt.FramelessWindowHint)
        self.setWindowOpacity(0.5) 
        url ='http://m.weather.com.cn/data/101090502.html'
        re = urllib2.urlopen(url).read()
        we = json.loads(re)['weatherinfo']
        label1 = QtGui.QLabel( we['city'] )
        label2 = QtGui.QLabel( we['date'] )
        label3 = QtGui.QLabel( we['week'] )
        label4 = QtGui.QLabel( we['temp1'])
        label5 = QtGui.QLabel( we['weather1'] )
        #--------- Add table layout 
        gridLayout = QtGui.QGridLayout()

        gridLayout.addWidget( label1 , 0, 0 )
        gridLayout.addWidget( label2 , 0, 1 )
        gridLayout.addWidget( label3 , 0, 2 )
        gridLayout.addWidget( label4 , 0, 3 )
        gridLayout.addWidget( label5 , 0, 4 )

        self.setLayout( gridLayout )
    def mousePressEvent(self,event):  
        if event.button()==QtCore.Qt.LeftButton:  
            self.dragPosition=event.globalPos()-self.frameGeometry().topLeft()  
            event.accept()  
        if event.button()==QtCore.Qt.RightButton:  
            self.close()  

    def mouseMoveEvent(self,event):  
        if event.buttons() & QtCore.Qt.LeftButton:  
            self.move(event.globalPos()-self.dragPosition)  
            event.accept()  

app = QtGui.QApplication( sys.argv )
demo = MyWindow()
demo.show()
app.exec_()