测试失败：/home/mona/.local/lib/python3.8/site-packages/ 不支持 .pth 文件错误：安装目录或 PYTHONPATH 错误

问题描述

我正在使用 Python 虚拟环境从 Git Repo 安装包。当我使用它的 setup.py 文件时，出现以下错误。我该如何解决？

mona@goku:~/research/code/IP-Net/src/lib/models/networks/py_utils/_cpools$ python setup.py install --user
running install
Checking .pth file support in /home/mona/.local/lib/python3.8/site-packages/
/home/mona/venv/ipnet/bin/python3 -E -c pass
TEST Failed: /home/mona/.local/lib/python3.8/site-packages/ does NOT support .pth files
error: bad install directory or PYTHONPATH

You are attempting to install a package to a directory that is not
on PYTHONPATH and which Python does not read ".pth" files from.  The
installation directory you specified (via --install-dir,--prefix,or
the distutils default setting) was:

    /home/mona/.local/lib/python3.8/site-packages/

and your PYTHONPATH environment variable currently contains:

    '~/venv/ipnet/lib/python3.8/site-packages'

Here are some of your options for correcting the problem:

* You can choose a different installation directory,i.e.,one that is
  on PYTHONPATH or supports .pth files

* You can add the installation directory to the PYTHONPATH environment
  variable.  (It must then also be on PYTHONPATH whenever you run
  Python and want to use the package(s) you are installing.)

* You can set up the installation directory to support ".pth" files by
  using one of the approaches described here:

  https://setuptools.readthedocs.io/en/latest/easy_install.html#custom-installation-locations


Please make the appropriate changes to your system and try again.

我有：

$ pip freeze
numpy==1.20.0
torch==1.7.1
typing-extensions==3.7.4.3
$ echo $PYTHONPATH
~/venv/ipnet/lib/python3.8/site-packages

和

$ ls ~/venv/ipnet/lib/python3.8/site-packages
total 152K
drwxrwxr-x  3 mona mona 4.0K Feb  2 19:34 ..
-rw-rw-r--  1 mona mona  126 Feb  2 19:34 easy_install.py
drwxrwxr-x  6 mona mona 4.0K Feb  2 19:34 setuptools
drwxrwxr-x  2 mona mona 4.0K Feb  2 19:34 setuptools-44.0.0.dist-info
drwxrwxr-x  2 mona mona 4.0K Feb  2 19:34 pip-20.0.2.dist-info
drwxrwxr-x  5 mona mona 4.0K Feb  2 19:34 pip
drwxrwxr-x  2 mona mona 4.0K Feb  2 19:34 pkg_resources-0.0.0.dist-info
drwxrwxr-x  5 mona mona 4.0K Feb  2 19:34 pkg_resources
-rw-rw-r--  1 mona mona  82K Feb  2 19:42 typing_extensions.py
drwxrwxr-x  2 mona mona 4.0K Feb  2 19:42 typing_extensions-3.7.4.3.dist-info
drwxrwxr-x  2 mona mona 4.0K Feb  2 19:42 __pycache__
drwxrwxr-x 18 mona mona 4.0K Feb  2 19:42 numpy
drwxrwxr-x  2 mona mona 4.0K Feb  2 19:42 numpy.libs
drwxrwxr-x  2 mona mona 4.0K Feb  2 19:42 numpy-1.20.0.dist-info
drwxrwxr-x 29 mona mona 4.0K Feb  2 19:42 torch
drwxrwxr-x 11 mona mona 4.0K Feb  2 19:42 caffe2
drwxrwxr-x 16 mona mona 4.0K Feb  2 19:42 .
drwxrwxr-x  2 mona mona 4.0K Feb  2 19:42 torch-1.7.1.dist-info

代码仓库位于：https://github.com/vaesl/IP-Net

我的 ~/.bashrc 中有以下内容并且已经有了它的源代码。它属于我为此 git repo 制作的 Python Virt Env：

export PYTHONPATH="~/venv/ipnet/lib/python3.8/site-packages"

解决方法

按照用户 metatoaster 的建议，我做了以下事情：

1. 评论了我添加到 ~/.bashrc 并获取它的这一行：

   #export PYTHONPATH="~/venv/ipnet/lib/python3.8/site-packages"

2. 在此处删除了 --user 标志：

   python setup.py install