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Tutorial 7

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This project is in a trial period, be cautious while contributing. Setup can still change before being approved as a libre project.

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	The Python standard library contains all the tools you'd need to access an API. However, the built-in APIs are very low level. They are good implementations of the HTTP protocol - but they require the user to manage lots of low-level details, like URL redirection, sessions, authentication, and payload encoding. As a "normal browser user" you're probably used to taking these details for granted, as a browser manages these details for you.	Python 标准库包含访问 API 所需的所有工具。然而，内置的 API 是非常低级的。它们很好地实现了 HTTP 协议，但需要用户管理大量低级细节，如 URL 重定向、会话、身份验证和有效负载编码。作为一名 "普通浏览器用户"，你可能已经习惯了将这些细节视为理所当然，因为浏览器会为你管理这些细节。
	As a result, people have developed third-party libraries that wrap the built-in APIs and provide a simpler API that is a closer match for the everyday browser experience. We're going to use one of those libraries to access the {JSON} Placeholder API - a library called `httpx <https://www.python-httpx.org>`__.	因此，人们开发了第三方库来封装内置的 API，并提供更简单的 API，使其更符合日常的浏览器体验。我们将使用其中一个库来访问 {JSON} 占位符 API - 一个名为 `httpx <https://www.python-httpx.org>`__ 的库。
	Let's add a ``httpx`` API call to our app. Add an import to the top of the ``app.py`` to import ``httpx``::	让我们在应用程序中添加一个 ``httpx`` API 调用。在 ``app.py`` 顶部添加导入，以导入 ``httpx``:：
	Then modify the ``say_hello()`` callback so it looks like this::	然后修改 ``say_hello()`` 回调，使其看起来像这样：：
	This will change the ``say_hello()`` callback so that when it is invoked, it will:	这将更改 ``say_hello()`` 回调，使它在被调用时，会:
	make a GET request on the JSON placeholder API to obtain post 42;	在 JSON 占位符 API 上发出 GET 请求，以获取职位 42；
	decode the response as JSON;	将响应解码为 JSON 格式；
	extract the body of the post; and	提取帖子正文；以及
	include the body of that post as the text of the dialog.	将该帖子的正文作为对话框的文本。
	Lets run our updated app in Briefcase developer mode to check that our change has worked.	让我们在公文包开发者模式下运行更新后的应用程序，检查我们的更改是否有效。
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docs/locales/zh_CN/LC_MESSAGES/tutorial/tutorial-7.po, string 12