[英]Python multiprocessing - AssertionError: can only join a child process
[英]Python Multiprocessing : AssertionError: can only join a started process error when multiple process are spawned in loop
我使用 for 循环生成了多个进程,并在启动它后将每个进程附加到一个数组中。
for param in multiples_100:
p = Process(target=calculate, args=(param,))
processes.append(p)
p.start()
p = Process(target=calculate, args=(200,))
processes.append(p)
for p in processes:
p.join()
当我尝试加入所有进程时抛出AssertionError: can only join a started process
您不会在循环外启动最终过程。
for param in multiples_100:
p = Process(target=calculate, args=(param,))
processes.append(p)
p.start()
p = Process(target=calculate, args=(200,))
p.start()
processes.append(p)
for p in processes:
p.join()
应该修复它。
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