python等效于java OutputStream？ [英] python equivalent of java OutputStream?

问题描述

是否存在与Java的 OutputStream 或 PrintWriter ？

Is there a Python equivalent / pseudo-equivalent to java's OutputStream or PrintWriter?

我希望能够拥有一个代表stdout / sterr之类的流，一个文件或其他东西（管道或套接字或虚拟接收器）并将其抽象出来，所以我可以将输出发送给它。

I want to be able to have a handle that represents either a stream like stdout/sterr, or a file, or something else (a pipe or a socket or a dummy sink) and abstract away what kind of thing it is, so I can just send output to it.

我该怎么做？

推荐答案

抽象出它的类型在Python中自动发生-称为鸭式打字。只需将任何类似文件的对象传递给函数，并使其使用类似文件的对象的接口即可。

"Abstracting away what type it is" happens automatically in Python - it's called 'duck typing'. Just pass any file-like object to the function, and have it use the interface of file-like objects.

FWIW，表示标准的输入/输出/错误流在<$ c中由 stdin ， stdout 和 stderr $ c> sys 模块。要获取可读写字符串的类文件对象，请使用 StringIO 模块。

FWIW, the standard input/output/error streams are represented by stdin, stdout and stderr in the sys module. To get file-like objects that read and write strings, use the StringIO module.

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