class Main(QtGui.QMainWindow, Ui_mainWindow):
    def __init__(self):
        QtGui.QMainWindow.__init__(self)
        self.setupUi(self)
        self.dirButton.clicked.connect(self.browse)
    def browse(self):
        dirName = QtGui.QFileDialog.getExistingDirectory(self, 'Select a Folder', '.')
        directory = dirName
        return directory
    def upload(self):
        print directory