[C++-sig] Evaluating multiple statements

[Murray Cumming]

On Tue, 2004-07-06 at 21:45 +0200, Ingo Luetkebohle wrote:
> Hi Murray,
> 
> you're using Py_CompileString already and that method can compile whole
> modules with Py_file_input.
> 
> Say you have
> 	def fun():
> 		return 1	
> 
> Where 'fun' could of course be arbitrarily complex.  Then you'd do
> something like (all error handling and reference counting omitted):
> 
> 	PyObject* c = Py_CompileString(text, "null", Py_file_input);
> 	PyObject* module = PyImport_ExecModule("module name", c);
> 	PyObject* dict = PyModule_GetDict(module);
> 	PyObject* f = PyDict_GetItemString(dict, "fun");
> 
> 
> And you get yourself a callable for "fun" for use with
> PyObject_CallObject.

Yes, that's what I ended up doing. I build a function definition from
the supplied statements, execute it so that it's defined, then evaluatea
call to that function. It seems to work really well.

-- 
Murray Cumming
murrayc at murrayc.com
www.murrayc.com
www.openismus.com