Re: using stdout/stderr with python

also sprach Martin F Krafft <krafft@xxxxxxxx> [2004.05.25.0140 +0200]:
> Some of my functions take a FILE*. I understand how one can
> provide wrappers or a typemap to deal with that, but what if
> I want to pass stdout and stderr into these functions as the FILE*
> arguments? I could not find a way to do this.

I found sys.stdout and sys.stderr, but I can't seem to use them.
Neither can I use file objects.

I am using the following typemap in the .i file:

  %typemap(python,in) FILE* {
    if (!PyFile_Check($input)) {
        PyErr_SetString(PyExc_TypeError, "need a file!");
        return NULL;
    }
    $1 = PyFile_AsFile($input);
  }

(basically copied from the docs)

but when I ttry to use sys.stdout as a FILE* argument, Python
complains:

  Traceback (most recent call last):
    File "./test", line 11, in ?
      phidget_set_debug_stream(f)
  TypeError: Type error. Expected _p_FILE

The same happens if I pass f = open('file', 'w')

I would appreciate any tips and pointers!

-- 
Martin F. Krafft                Artificial Intelligence Laboratory
Ph.D. Student                   Department of Information Technology
Email: krafft@xxxxxxxx          University of Zurich
Tel: +41.(0)1.63-54323          Andreasstrasse 15, Office 2.18
http://ailab.ch/people/krafft   CH-8050 Zurich, Switzerland
 
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