https://hu.778445.xyz/tags/python/hublogHugo 0.165.0 & FixIt v1.0.0-alpha-mtcmp1fxzh-CNMon, 06 Mar 2023 12:19:55 +0800https://hu.778445.xyz/posts/huawei-cloud-function-add-package/Mon, 06 Mar 2023 12:19:55 +0800https://hu.778445.xyz/posts/huawei-cloud-function-add-package/Python华为云函数添加依赖https://hu.778445.xyz/posts/python-virtualenv/Mon, 06 Mar 2023 11:38:22 +0800https://hu.778445.xyz/posts/python-virtualenv/Python<h2 class="heading-element" id="在linux环境下安装-virtualenv"><span>在linux环境下安装 virtualenv</span> <a href="#%e5%9c%a8linux%e7%8e%af%e5%a2%83%e4%b8%8b%e5%ae%89%e8%a3%85-virtualenv" class="heading-mark"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a> </h2><ol> <li> <p>python3.3 及以上版本内置了 venv 模块，你可以通过 python3 -m venv yourvenv 调用（更推荐）</p> </li> <li> <p>如果是较低版本或者有需求，你也可以使用 apt 安装 virtualenv 来直接使用此命令</p> <pre><code>sudo apt install python3-virtualenv</code></pre></li> </ol> <h2 class="heading-element" id="使用-python-virtualenv-创建虚拟环境"><span>使用 python virtualenv 创建虚拟环境</span> <a href="#%e4%bd%bf%e7%94%a8-python-virtualenv-%e5%88%9b%e5%bb%ba%e8%99%9a%e6%8b%9f%e7%8e%af%e5%a2%83" class="heading-mark"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a> </h2><pre><code># 使用 python3 内置的 venv 模块（推荐） python3 -m venv yourvenv python3 -m venv --system-site-packages yourvenv # 创建虚拟环境，并引入全局环境下的包 source yourvenv/bin/activate # 进入虚拟环境 deactivate # 退出虚拟环境 pip list # 显示已安装库 pip install package # 安装库 pip install -r requirements.txt # 将依赖库的名字和版本写入 requirements.txt 并通过命令逐个安装 pip uninstall package # 卸载库 pip freeze &gt; requirements.txt # 将当前环境依赖及版本以 requirements 的格式输出并写入 requirements.txt # pip安装指定版本库 $ pip install SomePackage # latest version $ pip install SomePackage==1.0.4 # specific version $ pip install &#39;SomePackage&gt;=1.0.4&#39; # minimum version</code></pre>