How do I output info to the console in a Gimp python script?

Question

I've just started learning about Gimp scripting using Python, and was wondering, how do I output text to the console? I am using version 2.7.5 on Windows 7.

I tried the print function, but it does not write anything to the python-fu console or the dev console that launches with Gimp. Is there a function I should use to do this? or is this a problem with the 2.7.5 release? I found a few mentions of "gimp-message" but that seems to be a function used with Scheme (Script-fu)

Thanks!

(also posted as a thread here)

Answer 1

We can redirect stdout and stderr.

#!/usr/bin/env python
# coding: iso-8859-1

from gimpfu import *
import sys
sys.stderr = open( 'c:\\temp\\gimpstderr.txt', 'w')
sys.stdout = open( 'c:\\temp\\gimpstdout.txt', 'w')

def MyUsefulFilter(img, drw):

    # these print redirected to gimpstdout.txt
    print 'hello world'
    print img
    print drw

    # this error redirected to gimpstderr.txt
    x = 0
    y = 1/x


    pdb.gimp_image_undo_group_start(img)
    # useful code here
    pdb.gimp_image_undo_group_end(img)


register(
    "useful_filter",
    "very useful indeed",
    "",
    "MF",
    "GPL",
    "2013",
    "<Image>/Filters/Photo/Useful Filter",
    "RGB*",
    [],
    [],
    MyUsefulFilter)

main()