子进程Popen阻止PyQt GUI

由于您已经在Qt土地上，因此您可以执行以下操作：

from PyQt4.QtCore import QProcessclass YourClass(QObject):    [...]    def videoProcess(self):        self.pushButton.setEnabled(0)        self.pushButton.setText("Please Wait")        command = "handbrake.exe"        args =  ["-i", "somefile.wmv", "-o", "somefile.mp4"]        process = QProcess(self)        process.finished.connect(self.onFinished)        process.startDetached(command, args)    def onFinished(self, exitCode, exitStatus):        self.pushButton.setEnabled(True)    [...]

http://doc.qt.io/qt-5/qprocess.html