catch argc-argv

[Duncan Booth]

John Machin wrote:

>> So, my question is: does the Python API containe fonctions like 
>> 'get_argc()' and 'get_argv()' ?
>> 
> 
> If you can't see them in the documentation, they aren't there. If they
> aren't there, that's probably for a good reason -- no demand, no use
> case. 
> 
> 

Leaving aside whether or not there is a use-case for this, the reason they 
aren't there is that they aren't needed. As the OP was already told, to 
access argv, you simply import the 'sys' module and access sys.argv.

There are apis both to import modules and to get an attribute of an 
existing Python object. So all you need is something like (untested):

PyObject *sys = PyImport_ImportModule("sys");
PyObject *argv = PyObject_GetAttrString(sys, "argv");
int argc = PyObject_Length(argv);
if (argc != -1) {
   ... use argc, argv ...
}
Py_DECREF(argv);
Py_DECREF(sys);