[Distutils] Using printf from within a C extension

Bob Ippolito bob at redivi.com
Fri Dec 9 03:09:09 CET 2005

On Dec 8, 2005, at 4:43 PM, mike cantor wrote:

> I am extending python with C and trying to debug with printf.   The  
> code
> below succssfully returns the string "hello" when compiled and  
> called, but
> the "can print from in here phrase" does not reach python stdout.   
> Is there
> something screwy with my environment or is there some trick to this  
> that I
> don't know.  Any help would be greatly appreciated!
> -mike
> #include <Python.h>
> static PyObject*
> helloworld(PyObject* self)
> {
>      printf("can print from in here?");
>      return Py_BuildValue("s", "hello");
> }

It'll probably work if you add a line break there.  It's likely just  
sitting in a buffer waiting to be flushed.


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