Recently I've been looking at Povray, pyprocessing, and cfdg (version 3.0) as tools for creating digital images. I have branched two separate blogs where I mainly explore jruby + processing and processing.py

Wednesday, 13 June 2012

Porting pyglet to python 3.2

This seems to pretty straightforward, since if you hg clone the development version of pyglet (version 1.2), the built in setup.py will (when run with python3.2) do the py2to3 conversion for you. However the examples are probably best hand edited (you will learn syntax changes, especially if you use use an intelligent ide like eric5). Here is my modified events.py, enhanced to feature python3 string format. The main change from the original here is that for python3 print is now a function.

#!/usr/bin/env python3.2
# ----------------------------------------------------------------------------
# pyglet
# Copyright (c) 2006-2008 Alex Holkner
# All rights reserved.
# 
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions 
# are met:
#
#  * Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#  * Redistributions in binary form must reproduce the above copyright 
#    notice, this list of conditions and the following disclaimer in
#    the documentation and/or other materials provided with the
#    distribution.
#  * Neither the name of pyglet nor the names of its
#    contributors may be used to endorse or promote products
#    derived from this software without specific prior written
#    permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# ----------------------------------------------------------------------------

'''
'''

__docformat__ = 'restructuredtext'
__version__ = '$Id$'

import pyglet
from pyglet.window import key
from pyglet.window import mouse

window = pyglet.window.Window()

@window.event
def on_key_press(symbol, modifiers):
    if symbol == key.A:
        print('The "A" key was pressed.')
    elif symbol == key.LEFT:
        print('The left arrow key was pressed.')
    elif symbol == key.ENTER:
        print('The enter key was pressed.')

@window.event
def on_mouse_press(x, y, button, modifiers):
    if button == mouse.LEFT:
        print('The left mouse button was pressed x = {0}, y = {1} .'.format(x, y))

@window.event
def on_draw():
    window.clear()

pyglet.app.run()

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Pembrokeshire, United Kingdom
I have developed JRubyArt and propane new versions of ruby-processing for JRuby-9.1.5.0 and processing-3.2.2