往现有虚拟环境中增加python3.9.6

一、

python-3.9.6-amd64.exe安装到

E:\software\Python\Python396

二、

cd E:\software\Python\Python396

PS E:\software\Python\Python396> pip -V
pip 21.1.3 from e:\software\python\python396\lib\site-packages\pip (python 3.9)
PS E:\software\Python\Python396> pip install virtualenv（即使其他版本安装过，这里也必须重新安装，否则会出现，切换到3.9.6版本）

PS

E:\software\Python\Python396> virtualenv -v
find interpreter for spec PythonSpec(path=e:\software\python\python396\python.exe)

E:\software\Python\Python396> virtualenv E:\ENVS\python3.9.6

三、

修改C:\Users\Administrator\Documents\WindowsPowerShell\Microsoft.PowerShell_profile.ps1如下：

Set-Alias  py3.6  E:\ENVS\python3.6\Scripts\activate.ps1
Set-Alias  py3.13  E:\ENVS\python3.13\Scripts\activate.ps1
Set-Alias  py3.8  E:\ENVS\python3.8\Scripts\activate.ps1
Set-Alias  py3.9.6  E:\ENVS\python3.9.6\Scripts\activate.ps1
py3.8

效果如下