python subprocess库

Python的subprocess库是用于调用Linux shell命令并返回状态和结果的库。它取代了Python2.4以上版本的commands模块，可以在Python中创建并运行一个外部程序的子进程。subprocess库中定义了多个创建子进程的函数，可以根据需要选择适合的函数来创建子进程。此外，subprocess还提供了管理标准流和管道的工具，以实现进程间的文本通信。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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