[Python.NET] Fwd: PythonNET 2.0 Alpha2 and .NET 4.0

[Barton]

I've got this working on my private (for the moment) branch.  I could do 
this merge by this weekend if folks will find it useful.
-Barton

On 1/6/2011 6:59 AM, Oleksii Bidiuk wrote:
> Hi Alla,
>
> thanks for your prompt repsonse. In Python terms String('A') means 
> constructor with a string parameter AFAIK. When I use the python.exe 
> build against CLR 2.0 (from pythonnet-2.0-alpha2-clr2.0_115_py26.zip) 
> it works, but then it talks against .NET 2.0 while I want to talk to 
> the same 4.0 version as my .NET application.
>
> With the example below using the .NET 2.0 version I get
>
> >>> s = String.__overloads__[Char, Int32]('A', 10)
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
> AttributeError: type object 'String' has no attribute '__overloads__'
>
> Basically it seems that the version of python for .net compiled 
> against .NET 4.0 runtime does not work out of box for me. I wonder if 
> somebody had more luck with this.
>
> 2011/1/6 Alla Gofman <Alla.Gofman at sandisk.com 
> <mailto:Alla.Gofman at sandisk.com>>
>
>     Hi Oleksii,
>
>     I have no experience with importing .net modules into Python.
>
>     I work on embedding Python into C#.
>
>     There is no such constructor String('A')for String class as you
>     use, which gets char.
>
>     You can see which constructors exists in:
>     http://msdn.microsoft.com/en-us/library/system.string.string.aspx
>
>     Example:
>
>     I read in http://pythonnet.sourceforge.net/readme.html
>
>     In most cases, Python for .NET can determine the correct
>     constructor to call automatically based on the arguments. In some
>     cases, it may be necessary to call a particular overloaded
>     constructor, which is supported by a special "__overloads__"
>     attribute on a class:
>
>         from System import String, Char, Int32
>
>         s = String.__overloads__[Char, Int32]('A', 10)
>
>     I hope you succeed,
>
>
>     Alla
>
>     *From:*pythondotnet-bounces+alla.gofman=sandisk.com
>     <http://sandisk.com>@python.org <http://python.org>
>     [mailto:pythondotnet-bounces+alla.gofman
>     <mailto:pythondotnet-bounces%2Balla.gofman>=sandisk.com
>     <http://sandisk.com>@python.org <http://python.org>] *On Behalf Of
>     *Oleksii Bidiuk
>     *Sent:* Thursday, January 06, 2011 4:27 PM
>     *To:* pythondotnet at python.org <mailto:pythondotnet at python.org>
>     *Subject:* [Python.NET] PythonNET 2.0 Alpha2 and .NET 4.0
>
>     Hi,
>
>     I am trying to use Python for .NET under VS2010 and .NET 4.0. I've
>     downloaded the pythonnet-2.0-alpha2.zip and changed the project
>     settings to use .NET 4.0 under VS2010 and recompiled everything.
>     The resulting python.exe can be run, and statements like "import
>     clr" and "from System import String" work (as the Python standard
>     library calls as well) until I try to instantiate a class as e.g.
>
>     s = String('A')
>
>     At this moment the Python for .NET seem to crash in nativecall.cs
>     at NativeCall.Call_3() at (the only) line
>
>     return Impl.Call_3(fp, a1, a2, a3);
>
>     with dreaded "Exception of type 'System.ExecutionEngineException'
>     was thrown.". Trying to instantiate Int32() object results in
>     "Attempted to read or write protected memory. This is often an
>     indication that other memory is corrupt."
>
>     Suggestions are more than welcome! Thanks in advance!
>     -- 
>     oleksii
>
>
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>
>
> -- 
> oleksii
>
>
>
> -- 
> oleksii
>
>
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