Python 包安装问题：由于构建轮子时出错，无法安装“pickle5”。解决方案？

Question

我的软件包有问题，因为每次我想安装某个软件包时，有时会出现此错误 有什么想法如何解决它吗？

我想安装

pickle5

（因为

pickle

不存在），每次我想安装它时都会出现错误

错误：

Building wheels for collected packages: pickle5
  Building wheel for pickle5 (pyproject.toml) ... error
  error: subprocess-exited-with-error

  × Building wheel for pickle5 (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [17 lines of output]
      running bdist_wheel
      running build
      running build_py
      creating build
      creating build\lib.win-amd64-cpython-311
      creating build\lib.win-amd64-cpython-311\pickle5
      copying pickle5\pickle.py -> build\lib.win-amd64-cpython-311\pickle5
      copying pickle5\pickletools.py -> build\lib.win-amd64-cpython-311\pickle5
      copying pickle5\__init__.py -> build\lib.win-amd64-cpython-311\pickle5
      creating build\lib.win-amd64-cpython-311\pickle5\test
      copying pickle5\test\pickletester.py -> build\lib.win-amd64-cpython-311\pickle5\test
      copying pickle5\test\test_pickle.py -> build\lib.win-amd64-cpython-311\pickle5\test
      copying pickle5\test\test_picklebuffer.py -> build\lib.win-amd64-cpython-311\pickle5\test
      copying pickle5\test\__init__.py -> build\lib.win-amd64-cpython-311\pickle5\test
      running build_ext
      building 'pickle5._pickle' extension
      error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for pickle5
Failed to build pickle5
ERROR: Could not build wheels for pickle5, which is required to install pyproject.toml-based projects

Answer 1

它表示您需要安装 Microsoft Visual C++ 14.0 或更高版本才能构建 pickle5 包。

访问 Microsoft C++ Build Tools 页面并下载最新版本的安装程序。

Answer 2

作为 pypi 网站： pickle5 它应该与 Python 3.5、3.6 和 3.7 一起使用。 虽然我已经在 Python 3.8 上测试过它，并且它（pickle5）也可以使用 python=3.8 安装。

附加：如果您正在使用 anaconda，那么流程应该是

1. conda activate <env_name>

2. python --version

3. python3 --version

4. conda remove python

5. conda remove python3

6. conda install python=3.8

7. pip install pickle5