Python-сообщество

 import sys
import launchForm
import progressbar
from PyQt5 import QtWidgets
class launch(QtWidgets.QMainWindow, launchForm.Ui_MainWindow):
      def __init__(self):
            super().__init__()
            self.setupUi(self)
            self.pushButton.clicked.connect(self.fileDialog)
            self.pushButton_2.clicked.connect(self.convert)
      def fileDialog(self):
            directory = QtWidgets.QFileDialog.getExistingDirectory(self, 'Выбери папку')
            if directory:
                  self.lineEdit.setText(directory)
      def convert(self):
            import os
            import win32com.client as win32
            self.directory = self.lineEdit.text()
            os.chdir(self.directory)
            self.word = win32.Dispatch('Word.Application')
            maxBar = len(os.listdir(os.getcwd()))
            #global maxBar
            #self.bar = progressbar()
            #self.bar.show()
            i = 1
            for file in os.listdir(os.getcwd()):
                  if file.endswith('docx'):
                        self.fn = os.path.join(os.getcwd(), file)
                        self.wDoc = self.word.Documents.Open(self.fn)
                        self.wDoc.SaveAs2(self.fn[0:-4] + 'doc', FileFormat = 0)
                        self.wDoc.Close()
                  i = i + 1
                  self.bar = progressbar()
                  self.bar.show()
                  progressbar().progressRun(maxBar, i)
            self.word.Quit()
                        
      #def showBar():
            #self.bar = progressbar()
            #self.bar.show()
            
class progressbar(QtWidgets.QDialog, progressbar.Ui_Dialog):
      def __init__(self):
            super().__init__()
            self.setupUi(self)
      def progressRun(self, maxBar, i):
            self.progressBar.setMaximum(maxBar)
            self.progressBar.setValue(i)
            
     
def ui():
      app = QtWidgets.QApplication(sys.argv)
      window = launch()
      window.show()
      app.exec_()
if __name__ == '__main__':
      ui()

 self.word