使用 requirements.txt 安装时，阻止 pip 在单个包上失败 [英] Stop pip from failing on single package when installing with requirements.txt

问题描述

我正在从 requirements.txt

pip install -r requirements.txt

requirements.txt 文件内容如下:

Pillow
lxml
cssselect
jieba
beautifulsoup
nltk

lxml 是唯一一个安装失败的包，这会导致一切失败(如 larsks 在评论中指出的预期结果).但是，在 lxml 失败后 pip 仍然运行并下载其余的包.

lxml is the only package failing to install and this leads to everything failing (expected results as pointed out by larsks in the comments). However, after lxml fails pip still runs through and downloads the rest of the packages.

据我所知，如果 requirements.txt 中列出的任何软件包无法安装，pip install -r requirements.txt 命令将失败.

From what I understand the pip install -r requirements.txt command will fail if any of the packages listed in the requirements.txt fail to install.

在运行 pip install -r requirements.txt 时，我是否可以传递任何参数来告诉它安装它可以安装的包并跳过它不能安装的包，或者在它看到时立即退出失败了?

Is there any argument I can pass when running pip install -r requirements.txt to tell it to install what it can and skip the packages that it cannot, or to exit as soon as it sees something fail?

推荐答案

使用 pip install 运行每一行可能是一种解决方法.

Running each line with pip install may be a workaround.

cat requirements.txt | xargs -n 1 pip install

注意:-a参数在MacOS下不可用，所以老猫更便携.

Note: -a parameter is not available under MacOS, so old cat is more portable.

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