setuptools何时安装到/.../my_module/build/lib/的可编辑链接，何时链接到/.../my_module? [英] When does setuptools install editable link to /.../my_module/build/lib/ andwhen does it link to /.../my_module?

问题描述

我注意到，当我执行可编辑的安装(pip install --user -e .)时，有时setuptools会创建一个build目录，并链接到/.../my_module/build/lib的鸡蛋. 有时(如果我在另一个项目中执行此操作)，它不会创建此目录，而只是鸡蛋链接到/.../my_module

I noticed that when I do an editable install (pip install --user -e .), sometimes, setuptools make a build directory and egg-links to /.../my_module/build/lib. While sometimes (if I do it in another project), it does not create this directory and simply egg-links to /.../my_module

但是，我不知道为什么.在第一种情况下，该项目实际上是不可编辑的(因为它似乎是在构建软件包，并链接到构建版本)

However, I can't figure out why. In the first case, the project is not really editable (since it seems to build the package, and link to the build version)

是什么导致安装程序工具使用build/lib而不是package dev目录?

What does cause setup tools to use build/lib rather than the package dev directory ?

(注意:这些是打算与sdist一起分发的完整python项目)

(Note : these are full python projects that are intended to be distributed with sdist)

推荐答案

在setup.py中指定了构建步骤时，似乎会自动调用setuptools build_py命令，典型示例是use_2to3=True.然后，由于您每次都需要重建，因此可编辑"在某种意义上不会得到尊重".

The setuptools build_py command seems to be automatically called when there is a build step specified int the setup.py, typical example is use_2to3=True. Then, the "editable" is not "respected" in a way, since you need to rebuild each time.

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