【发布时间】:2022-11-23 09:20:54
【问题描述】:
我已经将自己编码到一个我不知道如何摆脱的有趣情况中。
我有许多函数在多个并行线程中运行,但是当其中一个线程中抛出异常时,代码继续运行而没有通知
with concurrent.futures.ThreadPoolExecutor() as executor:
# queue up the threads for parallel execution
futureHost.update({executor.submit(infoCatalina, host): host for host in onlineHosts})
futureHost.update({executor.submit(infoVersion, host): host for host in onlineHosts})
futureHost.update({executor.submit(infoMount, host): host for host in onlineHosts})
# go through the threads as they complete
for _ in concurrent.futures.as_completed(futureHost):
x = progress(x, progBarLength)
如果我将 1/0 放在 infoVersion 行之前或之后抛出 ZeroDivisionError,则会抛出正确的错误。
1/0 # will throw an error
futureHost.update({executor.submit(infoVersion, host): host for host in onlineHosts})
1/0 # will throw an error
但是,如果我将 1/0 放在 infoVersion() 中,则在抛出错误并且函数退出时我不会收到任何消息。
def infoVersion(host):
print('This statement prints')
1/0 # does not throw an error
print('This statement does not print')
我必须按照上面的方式放置消息,以找出我的代码死在哪里。
我怎样才能让错误再次出现在我的代码中?
【问题讨论】:
标签: python exception error-handling concurrent.futures