进程运行时打开窗口。 PyQt的

Question

我是PyQt和编码GUI的新手。我尝试使用子进程命令自动化其他软件。我有按钮来运行命令。这个过程里面有很多循环，我想显示循环是否完成并且是否成功。 Everythings工作，但我的问题是当我按下按钮，第二个窗口打开后，过程完成。我尝试处理QtGui.Qapplication.processEvent()，但我真的不知道放在哪里。我使用迭代循环简化了问题。

import sys, os, subprocess
from PyQt4 import QtGui, QtCore
import externalCommands as run
import QtObject as QO
import resource
resource.setrlimit(resource.RLIMIT_STACK, (resource.RLIM_INFINITY, resource.RLIM_INFINITY))

# Don't write .pyc file
sys.dont_write_bytecode = True

class OtherWindow(QtGui.QMainWindow):
    def __init__(self, working_folder):
        super(OtherWindow, self).__init__()

        self.setGeometry(150, 150, 640, 528)
        self.setWindowTitle('Autre Fenetre ')
        self.setWindowIcon(QtGui.QIcon('mc3icon.jpg'))
        self.working_folder = working_folder

        #---home display---
        self.home()

    def home(self):

        QO.button('Abort', 530, 490, 'default', 'default', self.abort_calculation, self)

        for tc in range(len(self.working_folder)):
            currentWorkingFolder = os.path.abspath('../../workingfolder/' + self.working_folder[tc])
            os.chdir(currentWorkingFolder)

            QO.label('Running ' + str(self.working_folder[tc] ), 50, 0 + 50 * tc, self)
            source = run.checked_paramter_files('ms*', '*.exe')

            if (len(source) == 0):
                QO.label('***ERROR*** File *dcp, *.dat, *.exe not found', 250, 0 + 50 * tc, self)
                QO.picture("unchecked.png", 590, 12.5 + 50*tc, 30, 25, self)
            else:
                command = ('./program.exe descriptionFile.dcp')
                p = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
                for line in iter(p.stdout.readline, b''):
                    print line,
                QO.picture("checked.png", 590, 12.5 + 50*tc, 25, 25, self)

    def abort_calculation(self):
         #---pop message box---
         choice = QtGui.QMessageBox.question(self, 'Abort', 'Are you sure you to stop? \n Calculation will abort', QtGui.QMessageBox.Yes | QtGui.QMessageBox.No)
        if choice == QtGui.QMessageBox.Yes:
           self.close()
        else:
            pass


class Window(QtGui.QMainWindow):
    def __init__(self):
        super(Window, self).__init__()
        self.setGeometry(50, 50, 1024, 768)
        self.setWindowTitle('GUI test ')
        self.setWindowIcon(QtGui.QIcon('image.jpg'))

        image = QtGui.QLabel(self)
        image.setGeometry(390, 25, 800, 260)
        pixmap = QtGui.QPixmap('image.png')
        image.setPixmap(pixmap)
        image.show()

        self.working_folder = os.listdir(os.path.abspath('../../workingfolder/.'))

        #---bar menu---
        extractAction = QtGui.QAction('&Quit', self)
        extractAction.setShortcut("Ctrl+Q")
        extractAction.setStatusTip('leave the app')
        extractAction.triggered.connect(self.close_application)

        self.statusBar()
        mainMenu = self.menuBar()
        fileMenu = mainMenu.addMenu('&File')
        optionMenu = mainMenu.addMenu('&Options')
        fileMenu.addAction(extractAction)

        self.labelWarning = QtGui.QLabel(self)
        self.labelWarning.setText('***WARNING***')
        self.labelWarning.setStyleSheet('color: red')
        self.labelWarning.move(420, 100)
        self.labelWarning.resize(600, 600)

        #---home display---
        self.home()


    def home(self):

        #---button : quit ---
        QO.button('Quit', 910, 710, 'default', 'default', self.close_application, self)

        #---button : run fortran sofware ---
        QO.button('Run ', 570, 450, 'default', 'default', self.open_new_window, self)

        #---tree widget : list available folders to run fortran software---
        self.treeWidget = QtGui.QTreeWidget(self)
        self.treeWidget.setGeometry(QtCore.QRect(0, 75, 380, 650))
        self.treeWidget.setHeaderLabel('Available Test Cases')

        for i in xrange(len(self.working_folder)):
            parent = QtGui.QTreeWidgetItem(self.treeWidget)
            parent.setText(0, str(self.working_folder[i]))
            parent.setFlags(parent.flags() | QtCore.Qt.ItemIsTristate | QtCore.Qt.ItemIsUserCheckable)
            tmp_list_files = os.listdir(os.path.abspath('../../workingfolder/' + self.working_folder[i] + "/."))
            for x in xrange(len(tmp_list_files)):
                child = QtGui.QTreeWidgetItem(parent)
                child.setFlags(child.flags() | QtCore.Qt.ItemIsUserCheckable)
                 child.setText(0, tmp_list_files[x])
                 child.setCheckState(0, QtCore.Qt.Unchecked)

        #---show---
        self.show()


    def close_application(self):
        #---pop message box---
        choice = QtGui.QMessageBox.question(self, 'Quit', 'Are you sure you to quit?', QtGui.QMessageBox.Yes | QtGui.QMessageBox.No)
        if choice == QtGui.QMessageBox.Yes:
            print('Program closed sucessfully')
            sys.exit()
        else:
            pass


    def open_new_window(self):
        self.newWindow = OtherWindow(self.working_folder)
        self.newWindow.show()


def main():
    app    = QtGui.QApplication (sys.argv)
    GUI    = Window()
    sys.exit(app.exec_())

main()

感谢您的帮助。