[英]Multiprocessing Help. BrokenProcessPool Error
I'm trying to learn the basics of multi-processing in python, and found the following example online which I wanted to practice with.我正在尝试学习 Python 中多处理的基础知识,并在网上找到了以下我想练习的示例。
import concurrent.futures
import time
def do_something(seconds):
print(f' Sleeping {seconds} seconds')
time.sleep(seconds)
return f'Done Sleeping {seconds}'
with concurrent.futures.ProcessPoolExecutor() as executor:
f1 = executor.submit(do_something, 1)
print(f1.result())
Fairly simple, I know.相当简单,我知道。 However, for some reason when I try and run this, I get the following error.
但是,由于某种原因,当我尝试运行它时,出现以下错误。
Traceback (most recent call last):
回溯(最近一次调用最后一次):
File "", line 19, in print(f1.result())
文件“”,第 19 行,在 print(f1.result()) 中
File "C:\\Anaconda3\\lib\\concurrent\\futures_base.py", line 432, in result return self.__get_result()
文件“C:\\Anaconda3\\lib\\concurrent\\futures_base.py”,第 432 行,结果返回 self.__get_result()
File "C:\\Anaconda3\\lib\\concurrent\\futures_base.py", line 384, in __get_result raise self._exception
文件“C:\\Anaconda3\\lib\\concurrent\\futures_base.py”,第 384 行,在 __get_result 中引发 self._exception
BrokenProcessPool: A process in the process pool was terminated abruptly while the future was running or pending.
BrokenProcessPool:进程池中的进程在未来运行或挂起时突然终止。
Any idea what is causing this?知道是什么原因造成的吗?
You might want to check if the future is done already:您可能想检查未来是否已经完成:
if f1.done():
print(f1.result())
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