[IronPython] hosting and SetVariable

Seshadri Pillailokam Vijayaraghavan seshapv at microsoft.com
Thu May 29 21:17:21 CEST 2008


It's fully qualified path is (Runtime\)'Microsoft.Scripting.Hosting.HostingHelpers'


-----Original Message-----
From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Slide
Sent: Thursday, May 29, 2008 12:13 PM
To: Discussion of IronPython
Subject: Re: [IronPython] hosting and SetVariable

It may be able to be accomplished with ObjectOperations. What I am
trying to do is find all the types defined in my ScriptScope and
determine if they are subclasses (or implementers) of another type. I
used to do this using the PythonType class with UnderlyingSystemType
and so forth, but all that stuff is gone in the beta 2 I downloaded.
Also, I didn't see HostingHelpers.GetScope anywhere, is this from an
external library (I checked Microsoft.Scripting,
Microsoft.Scripting.Core and the IronPython assemblies)

On Thu, May 29, 2008 at 11:56 AM, Dino Viehland
<dinov at exchange.microsoft.com> wrote:
> Unfortunately there isn't any specific documentation.  Can what you used to do be accomplished with the ObjectOperations class?
>
> Otherwise there's a HostingHelpers.GetScope which you could use to get a Scope from a ScriptScope and you can probably re-use your old magic.
>
> -----Original Message-----
> From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Slide
> Sent: Thursday, May 29, 2008 11:34 AM
> To: Discussion of IronPython
> Subject: Re: [IronPython] hosting and SetVariable
>
> Thanks that will be helpful. Is there any documentation specific to
> IronPython? I would like to do some introspection on modules and such
> (to retrieve types defined in the module and so forth) and I used to
> do that with some PythonType magic which doesn't seem to work anymore
> (ScriptScope is not convertable to Scope when calling Get__dict__).
>
> Thanks again!
>
> On Thu, May 29, 2008 at 10:11 AM, Seshadri Pillailokam Vijayaraghavan
> <seshapv at microsoft.com> wrote:
>> The latest Hosting API Spec is available at http://compilerlab.members.winisp.net/.
>> It's available as both doc (http://compilerlab.members.winisp.net/dlr-spec-hosting.doc) or PDF (http://compilerlab.members.winisp.net/dlr-spec-hosting.pdf).
>>
>> Thanks
>> Sesh
>> -----Original Message-----
>> From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Slide
>> Sent: Thursday, May 29, 2008 8:42 AM
>> To: Discussion of IronPython
>> Subject: Re: [IronPython] hosting and SetVariable
>>
>> Apparently I need to update to the latest IP2.0 beta. I don't even see
>> CurrentManager.Globals, thanks for the info.
>>
>> On Thu, May 29, 2008 at 8:37 AM, Dino Viehland
>> <dinov at exchange.microsoft.com> wrote:
>>> What you want to do is put the variables in ScriptDomainManager.Globals/ScriptRuntime.Globals and then you can import them.  For example:
>>>
>>> ScriptDomainManager.CurrentManager.Globals.SetVariable("hello_world", "hi!");
>>>
>>> Then you can do:
>>>
>>> import hello_world
>>>
>>> and we'll pick it up from globals.  Just FYI IronPython.Hosting.PythonEngine is going away (along w/ CurrentEngine) so you're better off creating a ScriptRuntime and getting a ScriptEngine from it by name.
>>>
>>> -----Original Message-----
>>> From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Slide
>>> Sent: Thursday, May 29, 2008 8:14 AM
>>> To: Discussion of IronPython
>>> Subject: [IronPython] hosting and SetVariable
>>>
>>> Perhaps this is just missing knowledge on my part, but here goes.
>>>
>>> I am using IP2.0 with the hosting API to add scripting support to my
>>> application. I use the following code to create my main module from
>>> the script file the user selects:
>>>
>>>  ICompiledCode code =
>>> IronPython.Hosting.PythonEngine.CurrentEngine.Compile(SourceUnit.CreateFileUnit(_context,
>>> path), _error_sink);
>>> __main__ = code.MakeModule("__main__") as ScriptScope;
>>>
>>> // create our module.
>>> ScriptDomainManager.CurrentManager.PublishModule(__main__, "__main__");
>>>
>>> // add all the references the "Host" wanted.
>>> foreach (string assembly in _assemblies)
>>>      Microsoft.Scripting.ClrModule.GetInstance().AddReference(Path.GetFileNameWithoutExtension(assembly));
>>>
>>> // set all the variables that the "Host" wanted set.
>>> foreach (KeyValuePair<string, object> obj in _objects)
>>>      __main__.SetVariable(obj.Key, obj.Value);
>>>
>>> The last foreach is setting up my object model which is available to
>>> my scripts. My problem arises when I want to use one of these
>>> variables from a script that is imported from the user selected script
>>> file.
>>>
>>> For instance, if I add an object _objects.Add("MyObj", someObj), I can
>>> reference that object in the user script as MyObj with no problem.
>>> What I would like to do is have these variables global to all scripts
>>> that are imported, etc. I tried import __main__ in my other scripts,
>>> but __main__ doesn't show up in sys.modules (which is what I thought
>>> PublishModule would do, but thats a different story).
>>>
>>> Am I going about this the wrong way?
>>>
>>> Thanks
>>>
>>> slide
>>>
>>> --
>>> slide-o-blog
>>> http://slide-o-blog.blogspot.com/
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>>
>>
>>
>> --
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>> http://slide-o-blog.blogspot.com/
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>
>
>
> --
> slide-o-blog
> http://slide-o-blog.blogspot.com/
> _______________________________________________
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> http://lists.ironpython.com/listinfo.cgi/users-ironpython.com
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>



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