Pyinstaller无法与线程一起正常工作

运行bat文件的程序，其中包含使用Qthread运行可执行文件（longTask）的指令，但是当我使用Pyinstaller通过以下命令创建可执行文件时，该程序无法按预期工作。我给“ --windowed”提供了标准I / O的控制台窗口

pyinstaller --onefile --windowed main.py

但是有趣的是，当我删除--windowed参数时，它可以按预期工作

pyinstaller --onefile main.py

这是代码：

from PyQt4.Qt import *
import subprocess


def callSubprocess():
    page = QWizardPage()
    page.setTitle("Run myLongTask")

    runButton = QPushButton("Run")
    progressBar = QProgressBar()
    procLabel = QLabel()
    procLabel1 = QLabel()
    progressBar.setRange(0, 1)

    layout = QGridLayout()
    layout.addWidget(runButton, 0, 0)
    layout.addWidget(progressBar, 0, 1)
    layout.addWidget(procLabel)
    layout.addWidget(procLabel1)

    # Calls thread class
    myLongTask = TaskThread()
    runButton.clicked.connect(lambda: OnStart(myLongTask, progressBar, procLabel1))
    myLongTask.taskFinished.connect(lambda: onFinished(progressBar, procLabel))
    page.setLayout(layout)
    return page


def OnStart(myLongTask, progressBar, procLabel1):
    progressBar.setRange(0, 0)
    myLongTask.start()
    # I am waiting until my subprocess completes
    while not myLongTask.isFinished():
        QCoreApplication.processEvents()
    procLabel1.setText("Hello This is main")


def onFinished(progressBar, procLabel):
        # Stop the pulsation
        progressBar.setRange(0, 1)
        procLabel.setText("longTask finished")


class TaskThread(QThread):
    taskFinished = pyqtSignal()
    def __init__(self):
        QThread.__init__(self)

    def run(self):
        proc = subprocess.Popen(r'C:\Users\Desktop\runInf.bat', bufsize=0, shell=True,  stdout=subprocess.PIPE)
        proc.wait()
        self.taskFinished.emit()

    def __del__(self):
        self.wait()


if __name__ == '__main__':
    import sys
    app = QApplication(sys.argv)
    wizard = QWizard()
    wizard.addPage(callSubprocess())
    wizard.setWindowTitle("Example Application")
    wizard.show()

sys.exit(wizard.exec_())

当在Pycharm中执行上述代码时，它将按预期工作。但是，当使用PyInstaller构建时，主线程不会等到子进程完成。

任何想法如何创建线程可以按预期工作的可执行文件。提前致谢