Console.py 文件源码

def updateSysTrace(self):
        ## Install or uninstall  sys.settrace handler 

        if not self.ui.catchNextExceptionBtn.isChecked() and not self.ui.catchAllExceptionsBtn.isChecked():
            if sys.gettrace() == self.systrace:
                sys.settrace(None)
            return

        if self.ui.onlyUncaughtCheck.isChecked():
            if sys.gettrace() == self.systrace:
                sys.settrace(None)
        else:
            if sys.gettrace() is not None and sys.gettrace() != self.systrace:
                self.ui.onlyUncaughtCheck.setChecked(False)
                raise Exception("sys.settrace is in use; cannot monitor for caught exceptions.")
            else:
                sys.settrace(self.systrace)