Python + glade trouble

[Engnome]

As an excercise (learning python) I'm making a small memory game in python. Using glade files with libglade.
But I get this error:
memorygladetest.py:51: GtkWarning: gtk_table_attach: assertion `child->parent == NULL' failed self.board_table.attach(self.cards[x], i, i+1, j, j+1)

So I tried simplifying to:
self.board_table.attach(self.cards[0], 0, 1, 0, 1)

Doesn't work either. All I get is one image and then an error.


#!/usr/bin/python
import pygtk
pygtk.require("2.0")
import gtk
import gtk.glade
import random

def start(self, widget, a=None):
global nr_of_rows
global nr_of_cols

if memory_gui.radiobutton1.get_active():
difficulty = "easy"
nr_of_rows = 2
nr_of_cols = 4

if memory_gui.radiobutton2.get_active():
difficulty = "medium"
nr_of_rows = 4
nr_of_cols = 4

if memory_gui.radiobutton3.get_active():
difficulty = "hard"
nr_of_rows = 8
nr_of_cols = 4


#set up the board
memory_gui.board_table.resize(nr_of_rows, nr_of_cols)
memory_gui.attachImages()


def guess(self, widget, a=None):
pass



class memoryGui:

def delete_event(self, widget, event, data = None):
return False

def destroy(self, widget, data = None):
gtk.main_quit()

def attachImages(self):
x = 0
for j in range(0, nr_of_rows):
for i in range(0, nr_of_cols):
self.board_table.attach(self.cards[x], i, i+1, j, j+1)
self.cards[x].show()
x += 1

#manually like this doesn't work either:
#self.board_table.attach(self.cards[0], 0, 1, 0, 1)
#self.board_table.attach(self.cards[1], 1, 2, 0, 1)
#self.cards[0].show()
#self.cards[1].show()


def __init__(self):
xml = gtk.glade.XML("memory.glade")

#window
self.top_window = xml.get_widget("top_window")
self.top_window.connect("destroy", self.destroy)

#board tabel
self.board_table = xml.get_widget("table1")

self.cards = [gtk.Image()] * 16
for i in range(0, 16):
self.cards[i].set_from_file("cards/back.jpeg")

self.attachImages()

#control panel buttons and label
self.start_button = xml.get_widget("start_button")
self.start_button.connect("clicked", start, None)

self.guesses_label = xml.get_widget("guesses_label")
self.guesses_label.show()

self.highscore_button = xml.get_widget("highscore_button")
#self.highscore_button.connect("clicked", showHighScore, None)

#radiobuttons
self.radiobutton1 = xml.get_widget("radiobutton1")
self.radiobutton2 = xml.get_widget("radiobutton2")
self.radiobutton3 = xml.get_widget("radiobutton3")

self.radiobutton2.set_active(True)


def main(self):
gtk.main()

if __name__ == "__main__":
nr_of_rows = 4
nr_of_cols = 4

memory_gui = memoryGui()
memory_gui.main()


If you are wondering over the weird way of getting images inte the table it's because I want to be able to resize the table.

[duff]

just guessing, but "self.cards = [gtk.Image()] * 16 " is a list of 16 references to the same object.

>>> x=[{}] * 3
>>> x[0]['foo'] = 'bar'
>>> x
[{'foo': 'bar'}, {'foo': 'bar'}, {'foo': 'bar'}]


try using "append" inside the loop.

[Engnome]

just guessing, but "self.cards = [gtk.Image()] * 16 " is a list of 16 references to the same object.

>>> x=[{}] * 3
>>> x[0]['foo'] = 'bar'
>>> x
[{'foo': 'bar'}, {'foo': 'bar'}, {'foo': 'bar'}]


try using "append" inside the loop.

Thanks :) Just what I needed.

if anyone wonders this is what it looks like now:

self.cards = []
for i in range(0, 16):
self.cards.append(gtk.Image())
self.cards[i].set_from_file("cards/back.jpeg")