问题是thread_obj.start()立即返回。您生成的子线程在其自己的上下文中执行,具有自己的堆栈。任何发生的异常都是在子线程的上下文中,它在它自己的堆栈中。我现在想到的信息传递到父线程的一种方法是通过使用某种消息传递,所以你可以看看。
尝试此大小:
import sys
import threading
import Queue
class ExcThread(threading.Thread):
def __init__(self, bucket):
threading.Thread.__init__(self)
self.bucket = bucket
def run(self):
try:
raise Exception('An error occured here.')
except Exception:
self.bucket.put(sys.exc_info())
def main():
bucket = Queue.Queue()
thread_obj = ExcThread(bucket)
thread_obj.start()
while True:
try:
exc = bucket.get(block=False)
except Queue.Empty:
pass
else:
exc_type, exc_obj, exc_trace = exc
# deal with the exception
print exc_type, exc_obj
print exc_trace
thread_obj.join(0.1)
if thread_obj.isAlive():
continue
else:
break
if __name__ == '__main__':
main()