来自特定提交的点安装会提示“已满足要求". [英] Pip install from a specific commit prompts "requirements already satisfied"

问题描述

我正在使用pip和requirements.txt文件来处理我的virtualenv中的python软件包.我有一个从Github安装的特定软件包，因此在我的文件中有:

I'm using pip and a requirements.txt file to handle my python packages in my virtualenv. I have a particular package I install from Github so that inside my file I have:

git+ssh://[e-mail]/myuser/mypackage.git#egg=mypackage

由于我经常使用该软件包，因此我需要重新安装它，但是: pip install -r requirements.txt还给我

Since I'm working on the package quite often I need to re-install it but: pip install -r requirements.txt gives me back

Requirement already satisfied (use --upgrade to upgrade)...

Requirements.txt中所有具有新版本的软件包.

for all the packages in requirements.txt that have new versions.

如果我运行pip install -r requirements.txt --upgrade，它将尝试升级所有我的软件包(我不想要)，但我只想升级mypackage.在requirements.txt中，我尝试添加特定的提交，例如:

If I run pip install -r requirements.txt --upgrade it tries to upgrade all my packages (that I do NOT want) but I want to upgrade only mypackage. In requirements.txt I've tried to add a specific commit, like so:

git+ssh://[e-mail]/myuser/mypackage.git@733c5b616da27cba14478c24b#egg=mypackage

但是当我再次运行pip时，它会抛出:

But when I run pip again it throws:

Requirement already satisfied (use --upgrade to upgrade)..bla bla bla

问题:

• 是否有可能使用requirements.txt文件仅升级特定软件包mypackage?
• 我需要指定#egg=mypackage吗?

• Is there a way to upgrade only the specific package mypackage possibily using the requirements.txt file?
• Do I need to specify the #egg=mypackage?

推荐答案

获得Requirement already satisfied的原因是，如果您不通过--upgrade或-U(简写)，则该软件包不会被修改如果已经安装.

The reason you're getting Requirement already satisfied is because if you do not pass --upgrade or -U (the shorthand), the package is not modified if it is already installed.

(命令的这一部分进行了很多讨论.请查看前4个问题

(This part of the command has had a lot of discussion. Check out the first 4 issues here)

是否可以使用requirements.txt文件仅升级特定软件包mypackage?

在告诉它升级时，只需指定mypackage点即可.如果您只想更新请求，则pip命令为:

You need to specify just mypackage to pip when telling it to upgrade. If you wanted to update only requests, the pip command is:

pip install --upgrade requests

类似地，要从git存储库中进行更新，您想执行以下操作:

Similarly, to update from your git repository, you want to do:

pip install --upgrade git+ssh://[e-mail]/myuser/mypackage.git#egg=mypackage

由于它是一个URL，所以很长，我建议您按照@daphtdazz的建议进行操作，请使用多个需求文件，如下所示:

Since it's a URL is a long thing, what I suggest you do what @daphtdazz suggests, use multiple requirements files, as follows:

requirements.txt

requirements.txt

requests~=2.12.3
simplejson~=3.10.0
-r git_requirements.txt

git_requirements.txt

git_requirements.txt

git+ssh://[e-mail]/myuser/mypackage.git#egg=mypackage

另外，建议您对shell使用shell别名以减轻键入负担.

Additionally, I suggest you use shell-aliases for your shell to ease the typing load.

alias pip_git_upgrade="pip install --upgrade -r git_requirements.txt"

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我需要指定#egg=mypackage吗?

---

Do I need to specify the #egg=mypackage?

引用 pip官方的报价文档:

任何URL都可以使用#egg = name语法来明确声明项目名称.

Any URL may use the #egg=name syntax to explicitly state the project name.

基本上，使用#egg=mypackage是个好主意，因为您要明确显示项目名称.

Basically, using #egg=mypackage is a good idea since you are making the the project name explicit.

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