Import-Module virtualenvwrapper

I am using powershell. I successfully installed virtualenvwrapper-powershell.

But when I typed 'Import-Module virtualenvwrapper', I got an error as following:

PS C:\Python27> Import-Module virtualenvwrapper Import-Module : The specified module 'virtualenvwrapper' was not loaded because no valid module file was found in any module directory. At line:1 char:1

Import-Module virtualenvwrapper ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ CategoryInfo : ResourceUnavailable: (virtualenvwrapper:String) [Import-Module], FileNotFoundException FullyQualifiedErrorId : Modules_ModuleNotFound,Microsoft.PowerShell.Commands.ImportModuleCommand

It would be great if you could give me some advice...