[SOLVED] swig - calling char const * [] from python

swig - calling char const * [] from python

I have C code with a standard main of the form

int mymain(int argc, const char *argv[]);

I managed to get through the swig 'pythonizing' process to be able to call this from python. When I import my module and try to call mymain I get

>>>mymodule.mymain(1,[])
TypeError:in method 'mymain', argument 2 of type 'char const *[]'
>>>mymodule.mymain(1,["test"])
TypeError:in method 'mymain', argument 2 of type 'char const *[]'
>>>mymodule.mymain(1,"test")
TypeError:in method 'mymain', argument 2 of type 'char const *[]'
>>>mymodule.mymain(1,)
TypeError:mymain() missing 1 required position argument: 'argv'

and similarly changing argc to 0 or anything else didn't help. Since the C is autogenerated I'd rather not modify that - can someone fill me in on how to pass a char *[] argument? I don't actually care about the values being passed as main ignores them completely.

Solution

It looks like the swig 'typemap' allows one to take care of it: in the .i file you can add

%inline %{
int main_wrap()
    {
        const char* v[]={"foo"};
        mymain(1,v);
    }
%}

Reswigging this and recompiling, I can now call main_wrap() from python.