在 paycharm 中安装任何库时出错

Question

调用任意库的“ pip install ”命令后，报错：

ERROR: Command errored out with exit status 2:
   command: 'c:\users\roman\appdata\local\programs\python\python38\python.exe' 'c:\users\roman\appdata\local\programs\python\python38\lib\site-packages\pip' install -
-ignore-installed --no-user --prefix 'C:\Users\roman\AppData\Local\Temp\pip-build-env-2tu6fau4\overlay' --no-warn-script-location --no-binary :none: --only-binary :no
ne: -i https://pypi.org/simple -- 'setuptools>=40.8.0' wheel
       cwd: None
  Complete output (24 lines):
  Collecting setuptools>=40.8.0
    Using cached setuptools-67.0.0-py3-none-any.whl (1.1 MB)
  Collecting wheel
    Using cached wheel-0.38.4-py3-none-any.whl (36 kB)
  Installing collected packages: setuptools, wheel
  ERROR: Exception:
  Traceback (most recent call last):
    File "c:\users\roman\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\cli\base_command.py", line 216, in _main
      status = self.run(options, args)
    File "c:\users\roman\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\cli\req_command.py", line 182, in wrapper
      return func(self, options, args)
    File "c:\users\roman\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\commands\install.py", line 412, in run
      installed = install_given_reqs(
    File "c:\users\roman\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\req\__init__.py", line 82, in install_given_reqs
      requirement.install(
    File "c:\users\roman\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\req\req_install.py", line 778, in install
      scheme = get_scheme(
    File "c:\users\roman\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\locations.py", line 185, in get_scheme
      scheme = distutils_scheme(
    File "c:\users\roman\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\locations.py", line 118, in distutils_scheme
      assert not (home and prefix), "home={} prefix={}".format(home, prefix)
  AssertionError: home=C:\Users\roman\AppData\Local\Temp\pip-target-tdo35poo prefix=C:\Users\roman\AppData\Local\Temp\pip-build-env-2tu6fau4\overlay
  WARNING: You are using pip version 20.2.1; however, version 22.3.1 is available.
  You should consider upgrading via the 'c:\users\roman\appdata\local\programs\python\python38\python.exe -m pip install --upgrade pip' command.
  ----------------------------------------
ERROR: Command errored out with exit status 2: 'c:\users\roman\appdata\local\programs\python\python38\python.exe' 'c:\users\roman\appdata\local\programs\python\python
38\lib\site-packages\pip' install --ignore-installed --no-user --prefix 'C:\Users\roman\AppData\Local\Temp\pip-build-env-2tu6fau4\overlay' --no-warn-script-location -
-no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'setuptools>=40.8.0' wheel Check the logs for full command output.`

重要的细微差别：

1. 我在没有模块的 paycharm 中有一个新项目。
2. 纯 Python 3.9
3. pip（蟒蛇 3.8）。
4. 我不是 Windows 10 系统的管理员。
5. 我正确地将 Python 3.9 添加到系统路径。
6. 通过解释器设置安装库也会出现同样的错误
7. 我重新安装了 python 和 paycharm
8. 我试着写pip3和--no-user

Answer 1

通过谷歌搜索错误assert not (home and prefix) ，我们可以找到这个 pypa/pip 问题，有人通过确保他们的pip.conf没有target行来解决这个问题。

您应该确保您的 pip 配置文件中没有多余的内容和/或没有设置PIP_TARGET环境变量或类似变量。