[Python.NET] How to turn on console window from Windows System while debugging Embedded PythonNet app?

Seungweon Park swpark71 at gmail.com
Thu Apr 4 23:45:44 CEST 2013


I retested with same code as you have and added online to execute a.py. It
looks it running but not the last line

        po = PythonEngine.RunString("execfile('c:\\temp\\a.py')");


[image: Inline image 2]



So I changed to

     PythonEngine.RunSimpleString("execfile('c:\\temp\\a.py')");

then, I got

[image: Inline image 3]

Hello World!
<module 'ntpath' from 'C:\Python27\Lib\ntpath.pyc'>
my\path
other\path
5
Traceback (most recent call last):
  File "<string>", line 1, in <module>
IOError: [Errno 2] No such file or directory: 'c:\temp\x07.py'

I don't know why it converted to 'c:\temp\x07.py' from 'c:\temp\a.py', and
got the error. Any idea?




On Thu, Apr 4, 2013 at 2:25 PM, Seungweon Park <swpark71 at gmail.com> wrote:

> As you see the screenshot, I ran same application like you, but it doesn't
> have any output which a.py's supposed to print 'aa' in the screen after
> "Hello World!".
>
>
> [image: Inline image 2]
>
>
> On Thu, Apr 4, 2013 at 1:51 PM, brad at fie.us <brad at fie.us> wrote:
>
>> What happens when you run a compiled application like mine, that has both
>> c# and python console output, directly from within the windows command line
>> cmd.exe?  Do you see the WriteLine() results from C# but not PythonNet?
>>
>> That will tell you if it's an execution environment issue or an actual
>> programming issue.  Which is still in question I think.
>>
>> -brad
>>
>> On Apr 4, 2013, at 4:40 PM, Seungweon Park <swpark71 at gmail.com> wrote:
>>
>> Image file is not attached. Here it goes.
>>
>>
>> On Thu, Apr 4, 2013 at 1:37 PM, Seungweon Park <swpark71 at gmail.com>wrote:
>>
>>> Hi,
>>>
>>> Actually, my questions are
>>>
>>>             1. How to turn on console window(live) from Windows System
>>> while debugging Embedded PythonNet app?
>>>             2. How to capture python script execution output from C#
>>> code?
>>>
>>> I've been talking to Brad at fie.us about my issue which I can't get the
>>> output result of any python command using PythonEngine.RunString() or
>>> PythonEngine.RunSimpleString().
>>> I've been tried to debug simple code with Python.Runtime project, but
>>> can't find how to turn on this console window, nor capture the python
>>> script execution output.
>>>
>>> What I'm trying to do is that I don't want to modify any python script
>>> when running a python script from C# code, so I have below code:
>>>
>>>
>>> using System;
>>> using System.Collections.Generic;
>>>  using System.Linq;
>>>  using System.Text;
>>> using System.Threading.Tasks;
>>> using Python.Runtime;
>>>  using System.Diagnostics;
>>>
>>> namespace npythontest
>>> {
>>>  public class Program
>>> {
>>> static void Main(string[] args)
>>>  {
>>> PyObject po;
>>>
>>> PythonEngine.Initialize();
>>>
>>> IntPtr pythonLock = PythonEngine.AcquireLock();
>>> po = PythonEngine.RunString("execfile('c:\\cvs\\brocade.py')");
>>>  PythonEngine.ReleaseLock(pythonLock);
>>>
>>> PythonEngine.Shutdown();
>>> }
>>>  }
>>> }
>>>
>>> and a.py prints out many string output. I want to capture this output
>>>  by RunString()/RunSimpleString() method, but it doesn't return any result
>>> except 'null'. It seems it isn't for getting output.
>>>
>>> Then, while talking to Brad, his screenshot from his Mac OS with Mono
>>> displays the execution result output on an window like below, so wonder if
>>> windows environment can have same console window.
>>> Previously, Oleksii and Sharon mentioned in the thread
>>> http://mail.python.org/pipermail/pythondotnet/2011-March/001103.html,
>>> but don't know it's already implemented or not. However, I can't find how
>>> to have same environment from my window system like Brad's Mac has.
>>>
>>> So would you help me how to capture the python script output or have
>>> console window for debugging when I'm using embedded PythonNet?
>>>
>>> Thank you,
>>> Spark.
>>>
>>> <Screen Shot 2013-04-01 at 6.22.50 PM.png>
>>>
>>>
>> <mono_screenshot_pythonnet.png>
>>
>>
>>
>
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