相关疑难解决方法(0)

我是python的新手,我得到一个奇怪的错误:

Segmentation fault (core dumped)

当我执行以下代码时:

  class Workspace(QMainWindow, Ui_MainWindow):
    """ This class is for managing the whole GUI `Workspace'.
        Currently a Workspace is similar to a MainWindow
    """

    def __init__(self):
        #p= subprocess.Popen(["java -Xmx256m -jar bin/HelloWorld.jar"],cwd=r'/home/karen/sphinx4-1.0beta5-src/sphinx4-1.0beta5/', shell=True, stdout=subprocess.PIPE, bufsize= 4024)
        try:
            from Queue import Queue, Empty
        except ImportError:
            while True:
    #from queue import Queue, Empty  # python 3.x
                print "error"

        ON_POSIX = 'posix' in sys.builtin_module_names

        def enqueue_output(out, queue):
            for line in iter(out.readline, b''):
                queue.put(line)
            out.close()

        p= Popen(["java -Xmx256m -jar bin/HelloWorld.jar"],cwd=r'/home/karen/sphinx4-1.0beta5-src/sphinx4-1.0beta5/',stdout=PIPE, shell=True, …

我们遇到了这个错误:

http://bugs.python.org/issue1856守护程序在解释器关闭期间断言段错误.

现在我搜索一种代码来解决这个bug.

目前代码如下所示:

while True:
    do_something()
    time.sleep(interval)

有没有办法在do_something()之前检查解释器是否仍然可用？

或者最好不要执行mythread.setDaemon(True)并检查主线程是否已退出？