Setting the PYTHONPATH with the Powershell permanently

I actually got a lot of tips on how to do this through this article:

http://technet.microsoft.com/en-us/library/ff730964.aspx

If you have the .NET Framework, you can do the following:

> [Environment]::SetEnvironmentVariable("PYTHONPATH", "D:/mypath", "User")

In order to see the changes, you need to open a new Powershell.