[Python.NET] import clr_2, import clr_4 vs import clr

[Liam Corrigan]

The one lib that has issues, includes some cpp runtime stuff that needs to be changed.

I’ve done it in the past, but it was a pain and is not our production code – which I need to test.

All the other .NET libs that I use targeted against 2.0, worked in the 4.0 .NET python.

 

 

From: Brad Friedman [mailto:brad at fie.us] 
Sent: March-22-12 5:00 PM
To: Liam Corrigan
Cc: <pythondotnet at python.org>
Subject: Re: [Python.NET] import clr_2, import clr_4 vs import clr

 

Silly question: isn't a .net 2.0 assembly backwards compatible with a .net 4.0 runtime?  Why do you actually need to run a physically separate runtime?  What is breaking?

On Mar 22, 2012, at 4:27 PM, "Liam Corrigan" <Liam.Corrigan at allenvanguard.com> wrote:

	Hi guys, 

	I’ve been using python .NET 2.0 in python 2.7.2 successfully for some time now and have also used the .NET 4.0 version, but of course I need to replace the clr.pyd and Python.Runtime.dll with the .NET 4.0 versions.

	Although most of my 2.0 libs work over the 4.0 version, there is one in house library targeted against .NET 2.0 that will not, without some awkward hacks.

	I need to be able to call into libraries written against both .NET 2.0 and 4.0, as separated calls - ideally, I’d like to have things such that I can operate in a python script something like this:

	 

	import clr_2

	import clr_4

	 

	clr_2.AddReference("MyDOTNET_2.0_BasedLib")

	clr_4.AddReference("MyDOTNET_4.0_BasedLib")

	 

	 

	Are there any settings in the source build that I can do, to kick out two separate clr.pyd and Python.Runtime.dll’s with new names and matching .NET version support? 

	 

	 

	Liam Corrigan

	 

	 

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