Catch non-std::exceptions in PythonQtCallSlot

[Tonka]

Hey Florian,

I have seom "problems" with non-std::exceptions in PythonQtCallSlot. I know that it is not possible for you to catch non-std::exception with the correct message, but you can catch all other exception with a default message instead of a crash from the application (because no one is catching it). The fix is really simple.

SVN revision 446, PythonQtSlot.cpp
existing code Line 203

} catch (std::exception& e) {
        hadException = true;
        QByteArray what("std::exception: ");
        what += e.what();
        PyErr_SetString(PyExc_RuntimeError, what.constData());
      }

Patched code:

      } catch (std::exception& e) {
        hadException = true;
        QByteArray what("std::exception: ");
        what += e.what();
        PyErr_SetString(PyExc_RuntimeError, what.constData());
      } catch(...)
      {
        hadException = true;
        QByteArray what("unknown internal exception");
        PyErr_SetString(PyExc_RuntimeError, what.constData());
      }

The catch(...) will catch all other exception with a default message, which is enough to be able to catch the exception in the py-script. The scripter will get a default message, but he/she is able to catch it in script instead of a crash.

Hope you like the "patch"

Greetings
Tonka

[Florian Link]

I added a catch (...) which is enabled by default.
It can be disabled in the src.pro file by undefining PYTHONQT_CATCH_ALL_EXCEPTIONS.

[Tonka]

Nice. Thx