如何将Python 3.3添加到Powershell？

Question

嘿,我一直试图通过在路径中将33与33重新混合来将Python 3.3添加到Windows PowerShell中.

我试图发布截图,但事实证明我需要10个代表,所以我只是复制并粘贴我尝试过的内容:

[Enviroment]::SetEnviromentVariable("Path", "$env:Path;C:\Python33", "User")

>

[Enviroment]::SetEnviromentVariable("Path", "$env:Path;C:\Python33")

>

[Enviroment]::SetEnviromentVariable("Path", "$env:Path;C:\Python33\python.exe", "User")

>

[Enviroment]::SetEnviromentVariable("Path", "$env:Path;C:\Python33;C:\Python33\Scripts", "User")

>

[Enviroment]::SetEnviromentVariable("Path", "$env:Path;C:\Python33\", "User")

python.exe所在文件夹的路径是:C:\ Python33

在某个地方,我做错了什么,但不确定在哪里.帮助一个人进入编程领域？

谢谢.

Answer 1

Python 3.3附带了PyLauncher(py.exe),它安装在C:\ Windows目录中(已在路径上),并允许任何已安装的Python通过命令行执行,如下所示:

Windows PowerShell
Copyright (C) 2009 Microsoft Corporation. All rights reserved.

PS C:\> py
Python 3.3.3 (v3.3.3:c3896275c0f6, Nov 18 2013, 21:19:30) [MSC v.1600 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> ^Z

PS C:\> py -2
Python 2.7.6 (default, Nov 10 2013, 19:24:18) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> ^Z

PS C:\> py -3
Python 3.3.3 (v3.3.3:c3896275c0f6, Nov 18 2013, 21:19:30) [MSC v.1600 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>>

请注意,如果同时安装了2.x和3.x默认的Python是2.X(Python中的更高版本3.X),但是这可以通过覆盖-3开关或默认设置的更改PY_PYTHON环境变量.

此外,如果您最后安装Python 3.3并注册扩展,PyLauncher将是.py文件的默认程序,并#!在脚本顶部添加特殊注释将指定用于脚本的Python版本.这允许您在桌面上安装Python 2和Python 3文件,只需双击它们即可为该脚本运行正确版本的Python.

请参阅Python 3文档中的Python Launcher for Windows.