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Friday, September 29, 2006

PowerShell : Hosting IronPython

In last post about using IronPython from PowerShell : Using IronPython to Connect to AD and list children , I did just use the CLI.

In this post I will show how to Use IronPython from Powershell, by hosting it.

I first load the DLL's needed (copy them to PSHOME directory), and then just start using it.

[System.Reflection.Assembly]::LoadFile("$pshome\IronPython.dll") 
[System.Reflection.Assembly]::LoadFile("$pshome\IronMath.dll") 

$ipe = new-object IronPython.Hosting.PythonEngine 

$code = @' 

import sys 
import clr 
import System 

clr.AddReferenceByPartialName("System.DirectoryServices") 

import System.DirectoryServices 

from System.DirectoryServices import * 

root = DirectoryEntry() 

for c in root.Children: print c.Name 

u = root.Children.Find("CN=FooBar") 

for p in u.Properties: print p.PropertyName , p.Value 

for p in u.Properties.__getitem__("CN"): print p 

'@ 

$ipe.Execute($code)

The results are not lost you can still work with them and you can exchange variables very easy also see examples below :

# You can get back the results by using Evaluate
PS C:\PowerShell> $ipe.Evaluate('root.Children.Find("CN=FooBar")')
distinguishedName
-----------------
{CN=fooBar,DC=mow,DC=local}
# Or you can get the variable
PS C:\PowerShell> $ipe.Globals["u"]
distinguishedName
-----------------
{CN=fooBar,DC=mow,DC=local}
# Set a IronPython Variable
PS C:\PowerShell> $ipe.Globals['domain'] = [adsi]''
PS C:\PowerShell> $ipe.Evaluate('domain.Children.Find("CN=FooBar")')
distinguishedName
-----------------
{CN=fooBar,DC=mow,DC=local}
# and do a Dir (get-member) on that variable in IronPython
PS C:\PowerShell> $ipe.Evaluate('dir(domain)')
AuthenticationType
CanRaiseEvents
Children
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