为什么拥抱面挂在输入法的清单上？

Question

与python 3.10和最新版本的拥抱脸。

对于像这样的简单代码

from transformers import pipeline

input_list = ['How do I test my connection? (Windows)', 'how do I change my payment method?', 'How do I contact customer support?']

classifier = pipeline('sentiment-analysis')
results = classifier(input_list)

程序挂起并返回错误消息：

File ".......env/lib/python3.10/multiprocessing/spawn.py", line 134, in _check_not_importing_main
    raise RuntimeError('''
RuntimeError: 
        An attempt has been made to start a new process before the
        current process has finished its bootstrapping phase.

        This probably means that you are not using fork to start your
        child processes and you have forgotten to use the proper idiom
        in the main module:

            if __name__ == '__main__':
                freeze_support()
                ...

但是用一个字符串替换列表输入，它就能工作了。

from transformers import pipeline
classifier = pipeline('sentiment-analysis')
result = classifier('How do I test my connection? (Windows)')

Answer 1

它需要定义一个主函数来运行列表输入所依赖的多任务。以下更新工程

from transformers import pipeline

def main():
    input_list = ['How do I test my connection? (Windows)', 
    'how do I change my payment method?',
    'How do I contact customer support?']

    classifier = pipeline('sentiment-analysis')
    results = classifier(input_list)

if __name__ == '__main__':
    main()

这个问题被简化为where to put freeze_support() in a Python script?