pip 命令报错 Fatal error in launcher: Unable to create process using ... ???? ???????

• 1）问题1
• • 解决方案
• 2）问题2
• • 解决方案

当我们使用 pip install auto-py-to-exe命令时，得到报错信息为 Fatal error in launcher: Unable to create process using '"d:pythonpython.exe" "D:pycharmpythonScriptspip3.exe" install auto-py-to-exe': ???? ???????

1）切换到 pip 的安装目录，如D:pycharmpythonScripts
2）在此处打开 Powershell 窗口
3）执行python pip.exe install SomePackage进行安装
4）安装成功后执行 pip 仍报错，提示 pip 要升级
5）执行 python -m pip install --upgrade pip
6）升级成功后，再次执行 pip，就解决了

参考链接：解决Windows下python和pip命令无法使用的问题

当我们使用 pip install auto-py-to-exe 来安装工具时，会出现如下的错误：

ERROR: Command errored out with exit status 1:
   command: 'c:usersea_e90434appdatalocalprogramspythonpython37-32python.exe' 'c:usersea_e90434appdatalocalprogramspythonpython37-32libsite-packagespip' install --ignore-installed --no-user --prefix 'C:Us
ersEA_E90~1AppDataLocalTemppip-build-env-i1b74fjxoverlay' --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple --trusted-host pypi.org --trusted-host files.pythonhosted.org -- '
setuptools>=40.8.0' wheel
       cwd: None
  Complete output (8 lines):
  Collecting setuptools>=40.8.0
    WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError(': Fail
ed to establish a new connection: [Errno 11001] getaddrinfo failed')': /simple/setuptools/
    WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError(': Fail
ed to establish a new connection: [Errno 11001] getaddrinfo failed')': /simple/setuptools/
    WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError(': Fail
ed to establish a new connection: [Errno 11001] getaddrinfo failed')': /simple/setuptools/
    WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError(': Fail
ed to establish a new connection: [Errno 11001] getaddrinfo failed')': /simple/setuptools/
    WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError(': Fail
ed to establish a new connection: [Errno 11001] getaddrinfo failed')': /simple/setuptools/
    ERROR: Could not find a version that satisfies the requirement setuptools>=40.8.0 (from versions: none)
  ERROR: No matching distribution found for setuptools>=40.8.0

关闭梯子，然后重新开始 pip install …

参考链接：Python 3.7 安装 auto-py-to-exe 模块在 Windows 上返回错误