Hi Denis, I have actually 3 different computers, one has Windows 7, one has Windows Server 2008, and one Windows Server 2012 R2. Only Windows Server 2012 R2 is trouble maker. I installed pythonnet the same way on all machines: - i downloaded it, and copied python.runtime dll in local directory where my program is - i downloaded winpython and copied its python27.dll into system32 directory It is x64 Version, .NET is 4.0 on all three machines. Thanks, Kresimir. Von: PythonDotNet [mailto:pythondotnet-bounces+kresimir.simunic=reicofil.com@python.org] Im Auftrag von Denis Akhiyarov Gesendet: Donnerstag, 18. Februar 2016 17:28 An: A list for users and developers of Python for .NET Betreff: Re: [Python.NET] PythonEngine.Initialize() exception Hi Kresimir, Which python version, x86 or x64, .NET, which pythonnet version and how you installed it? Is python registered in your path environment variable? If not, then you need to specify PYTHONPATH Cheers, Denis On Thursday, February 18, 2016, Simunic,Kresimir mailto:Kresimir.Simunic@reicofil.com> wrote: Hi all, I have a following problem – I installed Python and am calling PythonEngine.Initialize() from C#. I get following exception: The value should not be NULL. Parameter name: key. The software is running on Windows Server 2012 R2. Does anybody know what could be the problem ? Thanks ! Best, Kresimir. Reifenhäuser Reicofil GmbH & Co. KG Spicher Straße 46, 53844 Troisdorf, Germany Registergericht Siegburg, Reg.Nr. HR A 4534 USt-IdNr. DE 814359351, Steuer-Nr. 5220/5760/0426 Reifenhäuser Reicofil Verwaltungs-GmbH Registergericht Siegburg, Reg.Nr. HR B 788 Geschäftsführer: Dr.-Ing. Bernd Kunze Please note: This message may contain information which is privileged, confidential and proprietary.

Where did you download pythonnet from? Which version/branch? On Thursday, February 18, 2016, Simunic,Kresimir < Kresimir.Simunic@reicofil.com> wrote:

Hi Denis,

I have actually 3 different computers, one has Windows 7, one has Windows Server 2008, and one Windows Server 2012 R2.

Only Windows Server 2012 R2 is trouble maker.

I installed pythonnet the same way on all machines:

- i downloaded it, and copied python.runtime dll in local directory where my program is

- i downloaded winpython and copied its python27.dll into system32 directory

It is x64 Version, .NET is 4.0 on all three machines.

Thanks,

Kresimir.

*Von:* PythonDotNet [mailto:pythondotnet-bounces+kresimir.simunic javascript:_e(%7B%7D,'cvml','pythondotnet-bounces%2Bkresimir.simunic');= reicofil.com@python.org javascript:_e(%7B%7D,'cvml','reicofil.com@python.org');] *Im Auftrag von *Denis Akhiyarov *Gesendet:* Donnerstag, 18. Februar 2016 17:28 *An:* A list for users and developers of Python for .NET *Betreff:* Re: [Python.NET] PythonEngine.Initialize() exception

Hi Kresimir,

Which python version, x86 or x64, .NET, which pythonnet version and how you installed it?

Is python registered in your path environment variable?

If not, then you need to specify PYTHONPATH

Cheers,

Denis

On Thursday, February 18, 2016, Simunic,Kresimir < Kresimir.Simunic@reicofil.com javascript:_e(%7B%7D,'cvml','Kresimir.Simunic@reicofil.com');> wrote:

Hi all,

I have a following problem – I installed Python and am calling PythonEngine.Initialize() from C#.

I get following exception:

The value should not be NULL.

Parameter name: key.

The software is running on Windows Server 2012 R2.

Does anybody know what could be the problem ?

Thanks !

Best,

Kresimir.

*Reifenhäuser Reicofil GmbH & Co. KG* Spicher Straße 46, 53844 Troisdorf, Germany Registergericht Siegburg, Reg.Nr. HR A 4534 USt-IdNr. DE 814359351, Steuer-Nr. 5220/5760/0426 Reifenhäuser Reicofil Verwaltungs-GmbH Registergericht Siegburg, Reg.Nr. HR B 788 Geschäftsführer: Dr.-Ing. Bernd Kunze

Please note: This message may contain information which is privileged, confidential and proprietary.

Pythonnet is hosted on GitHub since 2014. GitHub.com/pythonnet Can anyone update sourceforge to point to this new repo? On Thursday, February 18, 2016, Simunic,Kresimir < Kresimir.Simunic@reicofil.com> wrote:

______ i downloaded from

https://sourceforge.net/projects/pythonnet/files/

i took the first file CLR 4.0

about .Net framework, i guess on Windows Server 2012 R2 is 4.5 actually.

is this ok ?

_________________________________ Von: PythonDotNet [pythondotnet-bounces+kresimir.simunic= reicofil.com@python.org javascript:;]" im Auftrag von "Denis Akhiyarov [denis.akhiyarov@gmail.com javascript:;] Gesendet: Donnerstag, 18. Februar 2016 21:06 An: A list for users and developers of Python for .NET Betreff: Re: [Python.NET] PythonEngine.Initialize() exception

Where did you download pythonnet from? Which version/branch?

On Thursday, February 18, 2016, Simunic,Kresimir < Kresimir.Simunic@reicofil.com javascript:;javascript:;>> wrote:

Hi Denis,

I have actually 3 different computers, one has Windows 7, one has Windows Server 2008, and one Windows Server 2012 R2.

Only Windows Server 2012 R2 is trouble maker.

I installed pythonnet the same way on all machines:

- i downloaded it, and copied python.runtime dll in local directory where my program is

- i downloaded winpython and copied its python27.dll into system32 directory

It is x64 Version, .NET is 4.0 on all three machines.

Thanks,

Kresimir.

Von: PythonDotNet [mailto:pythondotnet-bounces+kresimir.simunic javascript:;=reicofil.com@python.org javascript:;] Im Auftrag von Denis Akhiyarov Gesendet: Donnerstag, 18. Februar 2016 17:28 An: A list for users and developers of Python for .NET Betreff: Re: [Python.NET] PythonEngine.Initialize() exception

Hi Kresimir,

Which python version, x86 or x64, .NET, which pythonnet version and how you installed it?

Is python registered in your path environment variable?

If not, then you need to specify PYTHONPATH

Cheers, Denis

On Thursday, February 18, 2016, Simunic,Kresimir < Kresimir.Simunic@reicofil.com javascript:;> wrote: Hi all,

I have a following problem – I installed Python and am calling PythonEngine.Initialize() from C#.

I get following exception:

The value should not be NULL. Parameter name: key.

The software is running on Windows Server 2012 R2.

Does anybody know what could be the problem ?

Thanks !

Best,

Kresimir.

Reifenhäuser Reicofil GmbH & Co. KG Spicher Straße 46, 53844 Troisdorf, Germany Registergericht Siegburg, Reg.Nr. HR A 4534 USt-IdNr. DE 814359351, Steuer-Nr. 5220/5760/0426 Reifenhäuser Reicofil Verwaltungs-GmbH Registergericht Siegburg, Reg.Nr. HR B 788 Geschäftsführer: Dr.-Ing. Bernd Kunze

Please note: This message may contain information which is privileged, confidential and proprietary.

_________________________________________________ Python.NET mailing list - PythonDotNet@python.org javascript:; https://mail.python.org/mailman/listinfo/pythondotnet

You can install from PYPI: pip install pythonnet --pre Which will download and install latest development version of pythonnet (including Python.Runtime.DLL and clr.pyd) corresponding to your python version. Otherwise you can download the latest source on GitHub and recompile in Visual Studio with DebugWin and x86 or x64 configuration, or build the wheel with this command: python.exe ./pythonnet/setup.py bdist_wheel And install this wheel using this command: pip install ./pythonnet/dist/*.whl Where ./ is location of extracted source code and *.whl is name of wheel in dist directory, that depends on python version. Here is the wiki article for troubleshooting: Github.com/denfromufa/pythonnet/wiki/Troubleshooting-FAQ On Friday, February 19, 2016, Simunic,Kresimir < Kresimir.Simunic@reicofil.com> wrote:

Is this the problem with Windows Server 2012 R2 (or .NET 4.5.1) ?

Can I download somewhere Python.Runtime DLL where this problem is fixed ?

*Reifenhäuser Reicofil GmbH & Co. KG* Spicher Straße 46, 53844 Troisdorf, Germany Registergericht Siegburg, Reg.Nr. HR A 4534 USt-IdNr. DE 814359351, Steuer-Nr. 5220/5760/0426 Reifenhäuser Reicofil Verwaltungs-GmbH Registergericht Siegburg, Reg.Nr. HR B 788 Geschäftsführer: Dr.-Ing. Bernd Kunze

Please note: This message may contain information which is privileged, confidential and proprietary.

Hi Denis, I followed your instruction with the pip and it seems that it is working ! Thanks a lot ! Regards, Kresimir. Reifenhäuser Reicofil GmbH & Co. KG Spicher Straße 46, 53844 Troisdorf, Germany Registergericht Siegburg, Reg.Nr. HR A 4534 USt-IdNr. DE 814359351, Steuer-Nr. 5220/5760/0426 Reifenhäuser Reicofil Verwaltungs-GmbH Registergericht Siegburg, Reg.Nr. HR B 788 Geschäftsführer: Dr.-Ing. Bernd Kunze Please note: This message may contain information which is privileged, confidential and proprietary.

Hi Stefan, Thank you for your suggestion. But I tried as Denis suggested me, to download latest Python.Runtime DLL with pip and installed it together with my application on Windows Server 2012 R2 and it worked. Is there any advantage of your approach ? Regards, Kresimir. Reifenhäuser Reicofil GmbH & Co. KG Spicher Straße 46, 53844 Troisdorf, Germany Registergericht Siegburg, Reg.Nr. HR A 4534 USt-IdNr. DE 814359351, Steuer-Nr. 5220/5760/0426 Reifenhäuser Reicofil Verwaltungs-GmbH Registergericht Siegburg, Reg.Nr. HR B 788 Geschäftsführer: Dr.-Ing. Bernd Kunze Please note: This message may contain information which is privileged, confidential and proprietary.