python - 在 ubuntu 上将 setuptools 从 20.10.1 降级到 18.2

Question

我在 ubuntu 虚拟环境中进行了以下设置

pip list argparse (1.2.1) pip (1.5.4) setuptools (20.10.1) wsgiref (0.1.2)

我想安装 setuptools 18.2 作为项目要求。请告诉我如何做到这一点

Answer 1

我刚刚测试了它，看起来只需执行 pip install setuptools==18.2 就可以了。

$ pip install setuptools==20.10.1
You are using pip version 6.1.1, however version 8.1.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
Collecting setuptools==20.10.1
  Using cached setuptools-20.10.1-py2.py3-none-any.whl
Installing collected packages: setuptools
  Found existing installation: setuptools 15.0
    Uninstalling setuptools-15.0:
      Successfully uninstalled setuptools-15.0
Successfully installed setuptools-20.10.1

$ pip list
You are using pip version 6.1.1, however version 8.1.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
pip (6.1.1)
setuptools (20.10.1)                                     <<<<<<<<<<<<<<<<<< look here

$ pip install setuptools==18.2
You are using pip version 6.1.1, however version 8.1.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
Collecting setuptools==18.2
  Using cached setuptools-18.2-py2.py3-none-any.whl
Installing collected packages: setuptools
  Found existing installation: setuptools 20.10.1
    Uninstalling setuptools-20.10.1:
      Successfully uninstalled setuptools-20.10.1
Successfully installed setuptools-18.2

$ pip list
You are using pip version 6.1.1, however version 8.1.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
pip (6.1.1)
setuptools (18.2)                                         <<<<<<<<<<<<<<<<<< look here