[IronPython] clarification on current state of embedding
Justin Regele
jregele23 at gmail.com
Thu Jun 18 21:57:46 CEST 2009
This makes sense, although I am still confused as to why problems keep
creeping up to me. I am on Vista, though, and so I think my problem is that
while I installed 2.0, I cannot instal SP1. The server my code will run on
is still on 2.0 until the new system is rolled out, which may be 6 months
from now.
I built all my IPy libs for 2.0, but when I added a C# project to wrap the
embedded program and targetted 2.0 all the assemblies say they require 3.5.
If I add them anyway, the Microsoft scripting assemblies can't be found. No
such errors or warning about the IronPython assemblies, although I'm back to
'Python does not exist in the current context', even though I've got the
assemblies loaded and using IronPython.Hosting.
After trudging through this weirdness for a bit now, I'm realizing that the
issue most likely comes from running a x64 version of Vista, while
IronPython is in the x86 program files.
I'm going to bulid IronPython from source for 2.0 and see if that fixes the
problem.
On Thu, Jun 18, 2009 at 7:00 AM, Lepisto, Stephen P <
stephen.p.lepisto at intel.com> wrote:
> >From MSDN (http://msdn.microsoft.com/en-us/library/bb383796.aspx):
>
> "Differences Between .NET Framework Versions
> All three versions of the .NET Framework are based on version 2.0 of the
> CLR. The versions of the .NET Framework differ from each other in the list
> of assemblies that each makes available for you to reference in your
> projects. For example, LINQ is a new technology that is included in Visual
> Studio 2008. .NET Framework 3.5 is the only version of the .NET Framework
> that has LINQ-related assemblies. Therefore, you cannot use LINQ unless your
> project specifically targets .NET Framework 3.5. Similarly, Windows
> Presentation Foundation (WPF) is included in Windows Vista. You cannot build
> WPF applications unless your project targets .NET Framework 3.0 and later
> versions of the .NET Framework."
>
> In addition, .Net 3.0 changed the compiler to add support for lambdas in
> C#, although the resulting code can still run on .Net 2.0 runtime. The
> lambdas are converted to anonymous functions by the compiler. There may be
> other "syntactic sugar" changes as well.
>
> In Visual Studio, when you select the target runtime, you are primarily
> telling Visual Studio (and the underlying .Net compiler tools) to filter out
> elements from later versions of .Net. Of course, if you include a reference
> to a .Net 3.5 assembly, you have to make sure .Net 3.5 is installed on the
> target system.
>
>
> -----Original Message-----
> From: users-bounces at lists.ironpython.com [mailto:
> users-bounces at lists.ironpython.com] On Behalf Of Michael Foord
> Sent: Thursday, June 18, 2009 4:49 AM
> To: Discussion of IronPython
> Subject: Re: [IronPython] clarification on current state of embedding
>
> Justin Regele wrote:
> > This brings up another question I've encountered. My understanding was
> > that IPy had problems with 3.5, and so I have been targeting 2.0. But
> > when I try to reference the IronPython and Microsoft.Scripting
> > assemblies, Visual Studio says I need 3.5
>
>
> I've created many projects in Visual Studio referencing IronPython
> assemblies and targeting .NET 2.0. Which means I don't know what is
> wrong, but it *should* work fine... :-)
>
> Michael Foord
> >
> >
> >
> > On Wed, Jun 17, 2009 at 6:05 PM, Curt Hagenlocher
> > <curt at hagenlocher.org <mailto:curt at hagenlocher.org>> wrote:
> >
> > Good point!
> >
> >
> > On Wed, Jun 17, 2009 at 5:12 PM, Michael Foord
> > <fuzzyman at voidspace.org.uk <mailto:fuzzyman at voidspace.org.uk>>
> wrote:
> >
> > Curt Hagenlocher wrote:
> >
> > ...except through the hosting API *and through the new C#
> > dynamic functionality in .NET 4.0*.
> >
> >
> > And how do you get to the classes to use them with the new
> > dynamic functionality if it isn't through the hosting API?
> >
> > What you do with them once you get them is your own business
> > of course...
> >
> > Michael
> >
> >
> > On Wed, Jun 17, 2009 at 5:06 PM, Michael Foord
> > <fuzzyman at voidspace.org.uk
> > <mailto:fuzzyman at voidspace.org.uk>
> > <mailto:fuzzyman at voidspace.org.uk
> > <mailto:fuzzyman at voidspace.org.uk>>> wrote:
> >
> > Justin Regele wrote:
> >
> > What is the status of referencing IPy libraries
> > compiled to
> > dlls by other CLR languages? Google turned up that
> > as of 1.1
> > you had to use the embedding/hosting api's, since
> > the dlls
> > were not compatible with say C# assemblies. There were
> > allusions made to this being changed.
> >
> >
> > You can't access Python classes except through the
> > hosting API.
> > There are no (public) plans for this to change anytime
> > soon.
> >
> > Michael
> >
> >
> >
> >
> >
> >
> >
> >
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