如何从GUI应用程序正确终止QThread?

我尝试在QThread类中使用self.terminate()，在GUI类中也使用self.thread.terminate().我也尝试在两种情况下都放self.wait().但是，会发生两种情况:

I tried using self.terminate() in the QThread class, and also self.thread.terminate() in the GUI class. I also tried putting self.wait() in both cases. However, there are two scenarios that happen:

1)线程根本没有终止，GUI冻结，等待线程完成.线程完成后，GUI便解冻，一切恢复正常.

1) The thread does not terminate at all, and the GUI freezes waiting for the thread to finish. Once the thread finished, the GUI unfreezes and everything is back to normal.

2)线程确实确实终止了，但是同时冻结了整个应用程序.

2) The thread indeed does terminate, but at the same time it freezes the entire application.

我也尝试使用self.thread.exit().没事.

为进一步澄清，我正在尝试在GUI中实现一个用户中止按钮，该按钮将在任何时间点终止线程的执行.

To further clarify, I am trying to implement a user-abort button in GUI which would terminate the executing of the thread at any point in time.

谢谢.

这是run()方法:

def run(self):
    if self.create:
        print "calling create f"
        self.emit(SIGNAL("disableCreate(bool)"))
        self.create(self.password, self.email)
        self.stop()            
        self.emit(SIGNAL("finished(bool)"), self.completed)

def stop(self):
     #Tried the following, one by one (and all together too, I was desperate):
     self.terminate()
     self.quit()
     self.exit()
     self.stopped = True
     self.terminated = True
     #Neither works

这是用于中断线程的GUI类的方法:

And here is the GUI class' method for aborting the thread:

def on_abort_clicked(self):
     self.thread = threadmodule.Thread()
     #Tried the following, also one by one and altogether:
     self.thread.exit()
     self.thread.wait()
     self.thread.quit()
     self.thread.terminate()
     #Again, none work