python ThreadPoolExecutor线程池的工作线程中出现异常时,主线程不会捕获异常。
解决方法1:
直接在需要执行的任务方法中添加try:
executor = ThreadPoolExecutor() executor.submit(test_work, 0) def test_work(p): try: 1/p except Exception as e: logger.exception(e)
解决方法2:
添加完成运行时的callback:
executor = ThreadPoolExecutor() task = executor.submit(test_work, 0) task.add_done_callback(handle_exception)
handle_exception中又可以通过两种方式捕获异常:
2.1 通过concurrent.futures.Future.exception(timeout=None)
def handle_exception(worker):
# Method 1: concurrent.futures.Future.exception(timeout=None)
worker_exception = worker.exception()
if worker_exception:
logger.exception(worker_exception)
2.2 通过concurrent.futures.Future.result(Timeout = None)
def handle_exception(worker):
Method 2: try
try:
worker.result()
except Exception as e:
logger.exception(e)
原文地址:https://blog.csdn.net/ldahual/article/details/128134915