It's an escape character issue.
Since you are pasting source code in your source code, you need to double
escape. Probably as follows:
PythonEngine.RunSimpleString("execfile('c:\\\\temp\\\\a.py')");
the c# parser turns that into: execfile('c:\\temp\\a.py')
And then python runs those escape characters and gets: c:\temp\a.py
If you don't double escape, C# sends: execfile('c:\temp\a.py')
And therefore the escape characters \t and \a are executed, resulting in that
weird value you got.
On Apr 4, 2013, at 5:45 PM, Seungweon Park <[email protected]> wrote:
> 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.png>
>
>
>
> So I changed to
>
> PythonEngine.RunSimpleString("execfile('c:\\temp\\a.py')");
>
> then, I got
>
> <image.png>
>
> 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 <[email protected]> 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.png>
>
>
> On Thu, Apr 4, 2013 at 1:51 PM, [email protected] <[email protected]> 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 <[email protected]> wrote:
>
>> Image file is not attached. Here it goes.
>>
>>
>> On Thu, Apr 4, 2013 at 1:37 PM, Seungweon Park <[email protected]> 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 [email protected] 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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