from PySide.QtCore import *
from PySide.QtGui import *
import sys


class CarSocket(QObject):
    logSignal = Signal(str, str)
    def __init__(self):
        super(CarSocket, self).__init__()


class MainWindow(QMainWindow):
    def __init__(self):
        super(MainWindow, self).__init__()
        self.carSocket = CarSocket()
        self.carSocket.logSignal.connect(self.addToLog)

    def addToLog(self, text, mode='NORMAL'):
        if mode == 'RAW':
            toAdd = text
        else:
            toAdd = "<p>{}</p> \n <hr> \n".format(text)
#         self.log.logEdit.append(toAdd)


app = QApplication(sys.argv)
window = MainWindow()
window.show()
app.exec_()
sys.exit()