embedding interactive python interpreter

[Eric Frederich]

So.... I found that if I type ctrl-d then the other lines will print.

It must be a bug then that the exit() function doesn't do the same thing.
The documentation says "The return value will be the integer passed to
the sys.exit() function" but clearly nothing is returned since the
call to Py_Main exits rather than returning (even when calling
sys.exit instead of just exit).

In the mean time is there a way to redefine the exit function in
Python to do the same behavior as "ctrl-d?"
I realize that in doing that (if its even possible) still won't
provide a way to pass a value back from the interpreter via sys.exit.

Thanks,
~Eric



On Fri, Mar 25, 2011 at 12:02 PM, Eric Frederich
<eric.frederich at gmail.com> wrote:
> I am able to embed the interactive Python interpreter in my C program
> except that when the interpreter exits, my entire program exits.
>
>    #include <stdio.h>
>    #include <Python.h>
>
>    int main(int argc, char *argv[]){
>        printf("line %d\n", __LINE__);
>        Py_Initialize();
>        printf("line %d\n", __LINE__);
>        Py_Main(argc, argv);
>        printf("line %d\n", __LINE__);
>        Py_Finalize();
>        printf("line %d\n", __LINE__);
>        return 0;
>    }
>
> When I run the resulting binary I get the following....
>
> $ ./embedded_python
> line 5
> line 7
> Python 2.7.1 (r271:86832, Mar 25 2011, 11:56:07)
> [GCC 4.1.2 20080704 (Red Hat 4.1.2-48)] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
>>>> print 'hi'
> hi
>>>> exit()
>
>
> I never see line 9 or 11 printed.
> I need to embed python in an application that needs to do some cleanup
> at the end so I need that code to execute.
> What am I doing wrong?
>
> Is there something else I should call besides "exit()" from within the
> interpreter?
> Is there something other than Py_Main that I should be calling?
>
> Thanks,
> ~Eric
>