Error handling. Python embedded into a C++ app.

[Eric_Dexter at msn.com]

You would use try: and then on the next line except:  I am not sure
what the best answer is but you could write your errors to a file and
then load them if all else fails.

https://sourceforge.net/projects/dex-tracker



Wolfram wrote:
> I have a problem with displaying errors in an embedded situation.
>
> The "main program" I want to embed Python into is a windows, MFC,
> non-console, C++ application. My issue is that I have not been able to
> "catch" error messages from python, for example syntax errors.
>
> PyRun_SimpleFile() crashed, probably due to incompatible FILE
> structures. So I am using PyRun_SimpleString to call the python
> "execute" command to execute a *.py file. As a test for stdout I can
> do a "print" in the *.py and I test stderr using an on-purpose name
> error.
>
>
> Here is what I tried:
>
> - Use AllocConsole and
> 	freopen("CON", "w", stdout);
>   freopen("CON", "w", stderr);
> to redirect stderr and stdout to a new console window.
> The C++ stderr/stdout is successfully redirected before I start python
> with  Py_Initialize(), but Python does not output into it at all. In
> case it is a "not flushed yet" issue, I even added a Py_Finalize()
> afetr executing the *.py file.
> - I used a TKInter based solution found on the net
> - I reopened stderr and stdout in C++ to a file. It always stays at 0
> bytes.
> - I tried to reset stderr in the python code (sorry, forgot details).
>
> What is the best way to access Python error messages?
> I prefer a C++ to a python way as I currently can debug C++ but not
> python.
> Is there one way I can use to "catch" exceptions, "runtime errors" and
> "syntax errors" in case there is a difference between them? Sorry for
> the newbie questions but neither a look into my Python-book nor onto
> google helped.
> 
> Bye bye,
> Wolfram Kuss.