Stdout in extensions under IDLE

[Jeff Perry]

My C extension's output is different under the python command line shell
than it is under the graphical shell, IDLE.

pyext.c:
    #include <stdio.h>
    void Print() { printf("This is the message.\n"); }

Command line python:

    $ python
    >>> import pyext
    >>> pyext.Print()
    This is the message.
    >>>

Windowed python:

    $ idle
    >>> import pyext
    >>> pyext.Print ()
    >>>

Under IDLE, there is no output.

Is this a bug to report to sourceforge?
Is there a way to step into extensions with a debugger?

My environment:
- Python 2.0 b2
- Windows 98
- SWIG 1.1
- MSVC 5.0