[IronPython] clarification on current state of embedding

Justin Regele jregele23 at gmail.com
Thu Jun 18 22:18:34 CEST 2009


Yeah, I thought it was strange too. To be sure, I just downloaded the x64
.net 2.0 Sp1 installer again, ran it and here is the reason it errors:

"This product is not supported on Vista Operating System".

There you have it.
I'm grabbing the x86 sp1 and going to see if that one works.

On Thu, Jun 18, 2009 at 12:59 PM, Michael Foord
<fuzzyman at voidspace.org.uk>wrote:

> Justin Regele wrote:
>
>> 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.
>>
>
> IronPython is pure .NET code. It is independent of 32/64 bitness.
>
> It may be that to get .NET 2 SP1 on vista you actually need to install .NET
> 3.5? Seems odd though.
>
> Michael
>
>
>> 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 <mailto: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>
>>    [mailto: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>
>>    <mailto: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>
>>    <mailto: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>>
>>    >             <mailto: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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