pip需求文件中的可选依赖关系 [英] Optional dependencies in a pip requirements file
问题描述
如何在pip需求文件中指定可选依赖项?根据 pip文档,这是可能的,但文档不解释如何做我不能在网络上找到任何示例。
How can I specify optional dependencies in a pip requirements file? According to the pip documentation this is possible, but the documentation doesn't explain how to do it and I can't find any examples on the web.
推荐答案
而不是在与硬要求相同的文件中指定可选依赖项,您可以创建一个 optional-requirements.txt
和 requirements.txt
。
Instead of specifying optional dependencies in the same file as the hard requirements, you can create a optional-requirements.txt
and a requirements.txt
.
要将当前环境的包导出到文本文件中,您可以执行以下操作:
To export your current environment's packages into a text file, you can do this:
pip freeze > requirements.txt
如有必要,修改require.txt的内容以准确表示项目的依赖关系。然后,要安装此文件中的所有软件包,请运行:
If necessary, modify the contents of the requirements.txt to accurately represent your project's dependencies. Then, to install all the packages in this file, run:
pip install -U -r requirements.txt
-U
告诉 code>将软件包升级到最新版本,而
-r
告诉它要在require.txt中安装所有软件包。
-U
tells pip
to upgrade packages to the latest version, and -r
tells it to install all packages in requirements.txt.
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