<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title>Python - 分类 - 研发日志 · R&amp;D Log</title><link>https://rd163.visword.com/categories/python/</link><description>Python - 分类 - 研发日志 · R&amp;D Log</description><generator>Hugo -- gohugo.io</generator><language>zh-CN</language><managingEditor>whutluohui@gmail.com (小智晖)</managingEditor><webMaster>whutluohui@gmail.com (小智晖)</webMaster><copyright>本作品采用知识共享署名-非商业性使用 4.0 国际许可协议进行许可。</copyright><lastBuildDate>Sat, 20 Sep 2025 00:00:00 +0800</lastBuildDate><atom:link href="https://rd163.visword.com/categories/python/" rel="self" type="application/rss+xml"/><item><title>python3开发环境搭建</title><link>https://rd163.visword.com/posts/python3-development-env-setup/</link><pubDate>Sat, 20 Sep 2025 00:00:00 +0800</pubDate><author><name>小智晖</name></author><guid>https://rd163.visword.com/posts/python3-development-env-setup/</guid><description><![CDATA[<h2 id="版本选择" class="headerLink">
    <a href="#%e7%89%88%e6%9c%ac%e9%80%89%e6%8b%a9" class="header-mark"></a>版本选择</h2><p>建议使用 Python 3.10.x 以上版本，因为 3.8 版本已经不再支持。
例如，在 mac 安装 python3.8报错：</p>
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          <span class="tw:select-none tw:my-1! tw:block">text</span>
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      <button 
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          copy-code-button
          tw:select-none
          tw:mx-2 
          tw:hidden
          tw:group-[.is-open]:block
          tw:hover:text-fgColor-link 
          tw:print:hidden!"
        title="Copy code">
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    xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!-- Font Awesome Free 5.15.4 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) --><path d="M328 256c0 39.8-32.2 72-72 72s-72-32.2-72-72 32.2-72 72-72 72 32.2 72 72zm104-72c-39.8 0-72 32.2-72 72s32.2 72 72 72 72-32.2 72-72-32.2-72-72-72zm-352 0c-39.8 0-72 32.2-72 72s32.2 72 72 72 72-32.2 72-72-32.2-72-72-72z"/></svg></button>
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  <pre style="counter-reset: codeblock;" class="tw:block tw:m-0 tw:p-0"><code 
    id="codeblock-id-28" 
    class="
      chroma 
      tw:block! 
      tw:p-0
      tw:m-0
      tw:transition-[max-height] 
      tw:duration-500 
      tw:ease-in-out 
      tw:group-[.is-closed]:max-h-0! 
      tw:group-[.is-wrap]:text-wrap
      tw:overflow-y-hidden
      tw:overflow-x-auto
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      "><span class="line"><span class="cl"><span class="o">==&gt;</span> <span class="n">Fetching</span> <span class="n">downloads</span> <span class="k">for</span><span class="p">:</span> <span class="n">python</span><span class="err">@</span><span class="mf">3.8</span>
</span></span><span class="line"><span class="cl"><span class="n">Error</span><span class="p">:</span> <span class="n">python</span><span class="err">@</span><span class="mf">3.8</span> <span class="n">has</span> <span class="n">been</span> <span class="n">disabled</span> <span class="n">because</span> <span class="n">it</span> <span class="n">is</span> <span class="n">deprecated</span> <span class="n">upstream</span><span class="o">!</span> <span class="n">It</span> <span class="n">was</span> <span class="n">disabled</span> <span class="n">on</span> <span class="mi">2024</span><span class="o">-</span><span class="mi">10</span><span class="o">-</span><span class="mf">14.</span></span></span></code></pre>
</div>
<h2 id="ubuntu-2004-上安装-python-310" class="headerLink">
    <a href="#ubuntu-2004-%e4%b8%8a%e5%ae%89%e8%a3%85-python-310" class="header-mark"></a>Ubuntu 20.04 上安装 Python 3.10</h2><p>在 Ubuntu 20.04 上安装 Python 3.10 是一个非常常见的需求，因为 20.04 自带的版本是 3.8。有几种可靠的方法，<strong>强烈推荐使用 Deadsnakes PPA</strong>，这是最官方、最便捷的方式。</p>]]></description></item><item><title>Python asyncio 的事件循环机制</title><link>https://rd163.visword.com/posts/python-asyncio-event-loop/</link><pubDate>Sun, 07 Sep 2025 00:00:00 +0800</pubDate><author><name>小智晖</name></author><guid>https://rd163.visword.com/posts/python-asyncio-event-loop/</guid><description><![CDATA[<p>在使用 Python 的 asyncio 库实现异步编程的过程中，协程与事件循环这两个概念可以说有着千丝万缕的联系，常常是形影不离的出现，如胶似漆般的存在。</p>
<h2 id="asyncio-事件循环的理解" class="headerLink">
    <a href="#asyncio-%e4%ba%8b%e4%bb%b6%e5%be%aa%e7%8e%af%e7%9a%84%e7%90%86%e8%a7%a3" class="header-mark"></a>Asyncio 事件循环的理解</h2><ul>
<li><a href="https://fastapi.tiangolo.com/async/" target="_blank" rel="noopener noreferrer">FastAPI 文档中对 async 的介绍</a></li>
<li><a href="https://www.lipijin.com/python-asyncio-eventloop" target="_blank" rel="noopener noreferrer">以定时器为例研究一手 Python asyncio 的协程事件循环调度</a></li>
<li><a href="https://www.cnblogs.com/traditional/p/17357782.html" target="_blank" rel="noopener noreferrer">《asyncio 系列》1. 什么是 asyncio？如何基于单线程实现并发？事件循环又是怎么工作的？</a></li>
<li><a href="https://www.cnblogs.com/traditional/p/17363960.html" target="_blank" rel="noopener noreferrer">《asyncio 系列》2. 详解 asyncio 的协程、任务、future，以及事件循环 </a></li>
<li><a href="https://www.cnblogs.com/traditional/p/17364391.html" target="_blank" rel="noopener noreferrer">《asyncio 系列》3. 详解 Socket（阻塞、非阻塞），以及和 asyncio 的搭配</a></li>
</ul>
<h2 id="事件循环第三方实现" class="headerLink">
    <a href="#%e4%ba%8b%e4%bb%b6%e5%be%aa%e7%8e%af%e7%ac%ac%e4%b8%89%e6%96%b9%e5%ae%9e%e7%8e%b0" class="header-mark"></a>事件循环第三方实现</h2><p>Python 的 EventLoop 是一个抽象类，它定义了事件循环的基本方法，如创建、运行、停止、注册回调函数等等。除了Python 自带的 asyncio 库，还有其他第三方库，它们都实现了 EventLoop 的功能，如：</p>]]></description></item><item><title>Python 协程简介</title><link>https://rd163.visword.com/posts/python-corouting-intro/</link><pubDate>Sun, 13 Apr 2025 00:00:00 +0800</pubDate><author><name>小智晖</name></author><guid>https://rd163.visword.com/posts/python-corouting-intro/</guid><description><![CDATA[<p>Python 在 3.5 版本中引入了关于协程的语法糖 async 和 await, 在 python3.7 版本可以通过 asyncio.run() 运行一个协程。
所以建议大家学习协程的时候使用 python3.7+ 版本。</p>
<p>Python 官方提供了各个版本的 Pyothon 协程的文档，<a href="https://docs.python.org/zh-cn/3.13/library/asyncio-task.html" target="_blank" rel="noopener noreferrer">协程官方文档</a></p>]]></description></item><item><title>Python Http 客户端库</title><link>https://rd163.visword.com/posts/python-http-client-libs/</link><pubDate>Wed, 15 Jan 2025 00:00:00 +0800</pubDate><author><name>小智晖</name></author><guid>https://rd163.visword.com/posts/python-http-client-libs/</guid><description><![CDATA[<h2 id="urlliburllib2" class="headerLink">
    <a href="#urlliburllib2" class="header-mark"></a>urllib、urllib2</h2><p>Python2中早期使用的http库 urllib、urllib2 ，给我们提供了许多方便的功能。</p>
<h2 id="requests" class="headerLink">
    <a href="#requests" class="header-mark"></a>requests</h2><p>requests 是使用率非常高的 HTTP 库.</p>
<p>异常情况处理说明：</p>
<p>在发送HTTP请求获取数据的过程中，可能会遭遇以下异常:</p>]]></description></item><item><title>Conda的替代品</title><link>https://rd163.visword.com/posts/alternatives-for-conda/</link><pubDate>Sun, 12 Jan 2025 00:00:00 +0800</pubDate><author><name>小智晖</name></author><guid>https://rd163.visword.com/posts/alternatives-for-conda/</guid><description><![CDATA[<h1 id="conda的替代品" class="headerLink">
    <a href="#conda%e7%9a%84%e6%9b%bf%e4%bb%a3%e5%93%81" class="header-mark"></a>Conda的替代品</h1><p>由于 Anaconda MiniConda 开始收费了，我们可以用 MiniForge 或 Mamba 来代替 Conda。</p>
<ul>
<li><a href="https://github.com/conda-forge/miniforge" target="_blank" rel="noopener noreferrer">Miniforge</a></li>
<li><a href="https://github.com/mamba-org/mamba" target="_blank" rel="noopener noreferrer">Mamba</a></li>
</ul>]]></description></item><item><title>Python embeddable 版本安装过程记录</title><link>https://rd163.visword.com/posts/python-embeddable-install/</link><pubDate>Sun, 12 Jan 2025 00:00:00 +0800</pubDate><author><name>小智晖</name></author><guid>https://rd163.visword.com/posts/python-embeddable-install/</guid><description><![CDATA[<h1 id="python-embeddable-版本安装过程记录" class="headerLink">
    <a href="#python-embeddable-%e7%89%88%e6%9c%ac%e5%ae%89%e8%a3%85%e8%bf%87%e7%a8%8b%e8%ae%b0%e5%bd%95" class="header-mark"></a>Python embeddable 版本安装过程记录</h1><ul>
<li>操作系统： Win11</li>
<li>Python版本： Python 3.10</li>
</ul>
<h2 id="step-1-安装python310" class="headerLink">
    <a href="#step-1-%e5%ae%89%e8%a3%85python310" class="header-mark"></a>Step 1: 安装Python3.10</h2><p>从下载列表 <a href="https://www.python.org/downloads/release/python-3100/" target="_blank" rel="noopener noreferrer">Python3.10</a> 可以看出，Installer版本的安装文件大小比Embeddable版本大很多。</p>]]></description></item><item><title>Python Web 框架</title><link>https://rd163.visword.com/posts/python-web-framework/</link><pubDate>Sun, 12 Jan 2025 00:00:00 +0800</pubDate><author><name>小智晖</name></author><guid>https://rd163.visword.com/posts/python-web-framework/</guid><description><![CDATA[<h1 id="python-web-框架" class="headerLink">
    <a href="#python-web-%e6%a1%86%e6%9e%b6" class="header-mark"></a>Python Web 框架</h1><h2 id="django" class="headerLink">
    <a href="#django" class="header-mark"></a>django</h2><h2 id="fastapi" class="headerLink">
    <a href="#fastapi" class="header-mark"></a>FastAPI</h2><p><strong>路由</strong></p>
<ul>
<li><a href="https://fastapi.tiangolo.com/zh/tutorial/path-params/" target="_blank" rel="noopener noreferrer">路径参数 定义一般路由</a></li>
<li><a href="https://fastapi.tiangolo.com/zh/reference/apirouter/" target="_blank" rel="noopener noreferrer">对路由分组</a></li>
</ul>
<p><strong>OpenAPI 文档相关</strong></p>
<ul>
<li><a href="https://fastapi.tiangolo.com/zh/tutorial/body-fields/" target="_blank" rel="noopener noreferrer">请求体 - 字段</a></li>
<li><a href="https://fastapi.tiangolo.com/zh/tutorial/metadata/" target="_blank" rel="noopener noreferrer">元数据和文档 URL</a></li>
<li><a href="https://docs.pydantic.dev/latest/api/fields/" target="_blank" rel="noopener noreferrer">BaseModel 字段约束的Field定义</a></li>
</ul>
<p><strong>中间件</strong></p>]]></description></item><item><title>Python 的 dataclass</title><link>https://rd163.visword.com/posts/python-dataclass/</link><pubDate>Sun, 12 Jan 2025 00:00:00 +0800</pubDate><author><name>小智晖</name></author><guid>https://rd163.visword.com/posts/python-dataclass/</guid><description><![CDATA[<h1 id="python-的-dataclass" class="headerLink">
    <a href="#python-%e7%9a%84-dataclass" class="header-mark"></a>Python 的 dataclass</h1><p>dataclass是从Python3.7版本开始，作为标准库中的模块被引入。Python 3.6 版本可通过手动安装 <code>python3.6 -m pip install dataclasses </code>.</p>]]></description></item><item><title>Python 可视化调试</title><link>https://rd163.visword.com/posts/python-visual-debug/</link><pubDate>Sun, 12 Jan 2025 00:00:00 +0800</pubDate><author><name>小智晖</name></author><guid>https://rd163.visword.com/posts/python-visual-debug/</guid><description><![CDATA[<h1 id="python-可视化调试" class="headerLink">
    <a href="#python-%e5%8f%af%e8%a7%86%e5%8c%96%e8%b0%83%e8%af%95" class="header-mark"></a>Python 可视化调试</h1><h2 id="方法1-vscode" class="headerLink">
    <a href="#%e6%96%b9%e6%b3%951-vscode" class="header-mark"></a>方法1： VsCode</h2><h2 id="方法2-pycharm" class="headerLink">
    <a href="#%e6%96%b9%e6%b3%952-pycharm" class="header-mark"></a>方法2： PyCharm</h2><h2 id="方法3-viztracer" class="headerLink">
    <a href="#%e6%96%b9%e6%b3%953-viztracer" class="header-mark"></a>方法3： VizTracer</h2><ul>
<li><a href="https://github.com/gaogaotiantian/viztracer" target="_blank" rel="noopener noreferrer">VizTracer</a> A debugging and profiling tool that can trace and visualize python code execution</li>
</ul>]]></description></item><item><title>Python 与 bash 脚本共享配置文件的最佳实践</title><link>https://rd163.visword.com/posts/python-bash-share-conf/</link><pubDate>Sun, 12 Jan 2025 00:00:00 +0800</pubDate><author><name>小智晖</name></author><guid>https://rd163.visword.com/posts/python-bash-share-conf/</guid><description><![CDATA[<h1 id="python-与-bash-脚本共享配置文件的最佳实践" class="headerLink">
    <a href="#python-%e4%b8%8e-bash-%e8%84%9a%e6%9c%ac%e5%85%b1%e4%ba%ab%e9%85%8d%e7%bd%ae%e6%96%87%e4%bb%b6%e7%9a%84%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5" class="header-mark"></a>Python 与 bash 脚本共享配置文件的最佳实践</h1><p>同一个工程的代码中可能会同时包含 python 代码和 bash 脚本， 不可避免的会用到配置文件。一些场景下，这两种语言需要共享相同的配置。 怎么实现呢？ 有两种方案：</p>]]></description></item></channel></rss>