[IronPython] to invoke ironpython from runtime in .NET framework 4.0

David DiCato ddicato at microsoft.com
Tue Jan 26 22:58:05 CET 2010


The DLR is not exclusively for .NET 4.0, and until recently, it was not part of the framework. Starting with .NET 4.0, core bits of the DLR have been added as a feature.

IronPython 2.6 runs on .NET 2.0 SP1 and contains its own distribution of the DLR. The release page refers to this distribution when it mentions the update. On the other hand, IronPython 2.6 CTP for .NET 4.0 Beta 2 does not need to include the DLR core.

Hope this clears things up,
- David

From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Neelima Potti
Sent: Tuesday, January 26, 2010 1:24 PM
To: 'Discussion of IronPython'
Subject: Re: [IronPython] to invoke ironpython from runtime in .NET framework 4.0

Thank you Dino...it worked.
but I have a Q:
http://ironpython.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=12482... Whose release notes say "Updating to the latest version of the DLR"..so doesn't that mean it is .NET framework 4.0 as DLR is for .NET 4.0
http://ironpython.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=28125 ..."IronPython 2.6 CTP for .NET 4.0 Beta 2".
In terms of DLR..what is the difference between the above 2 releases...

From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Dino Viehland
Sent: Monday, January 25, 2010 4:51 PM
To: Discussion of IronPython
Subject: Re: [IronPython] to invoke ironpython from runtime in .NET framework 4.0

You need to download the version of IronPython which is built for .NET 4.0: http://ironpython.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=28125

That'll just work and it'll support interop w/ C# 4.0.

From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Neelima Potti
Sent: Monday, January 25, 2010 1:48 PM
To: users at lists.ironpython.com
Subject: [IronPython] to invoke ironpython from runtime in .NET framework 4.0

Hi,
I am new to IronPython..
I have downloaded IronPython from the website
http://www.codeplex.com/IronPython lastweek.
When I open IronPython Console, it shows
IronPython 2.6 (2.6.10920.0) on .NET 2.0.50727.3053

I am trying to invoke the Python engine at run time
By calling in c# source(.NET 4.0 framework)

_runtime = ScriptRuntime.CreateFromConfiguration()

When I add Microsoft.Scripting as a Reference to this project, it shows the version as 2.6.911.0

And my app.config has

<?xml version="1.0"?>
<configuration>
  <configSections>
    <section name="microsoft.scripting" type="Microsoft.Scripting.Hosting.Configuration.Section, Microsoft.Scripting, Version=2.6.911.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false"/>
  </configSections>
  <microsoft.scripting>
    <languages>
      <language names="IronPython,Python,py" extensions=".py" displayName="IronPython 2.0 Beta" type="IronPython.Runtime.PythonContext,IronPython, Version=2.0.0.0000, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
    </languages>
  </microsoft.scripting>
<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup></configuration>


During runtime, I get the error:
An error occurred creating the configuration section handler for microsoft.scripting: Could not load file or assembly 'Microsoft.Scripting, Version=2.6.911.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040

What am I missing here? Is my version wrong or publicKeyToken wrong or??

Any help would be greatly appreciated

Thank you
NPotti


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