Hi Cristian,
The problem is, self is only defined within the class definition.
Basically, the function are not part of the class, just called by the class.
We use a lambda to get the class passed to the function.
So, to correct your code:
from Tkinter import *
class MyApp:
def __init__(self, parent):
self.myParent = parent ### (7) remember my parent, the root
self.myContainer1 = Frame(parent)
self.myContainer1.pack()
self.button1 = Button(self.myContainer1)
self.button1.configure(text="OK", background= "green")
self.button1.pack(side=LEFT)
self.button1.bind("<Button-1>", lambda e, win=self:
button1Click(win)) ### (1)
self.button2 = Button(self.myContainer1)
self.button2.configure(text="Cancel", background="red")
self.button2.pack(side=RIGHT)
self.button2.bind("<Button-1>", lambda e, win=self:
button2Click(win)) ### (2)
def button1Click(win):
if win.button1["background"] == "green": ### (4)
win.button1["background"] = "yellow"
else:
win.button2["background"] = "green"
def button2Click(win):
win.myParent.destroy() ### (6)
root = Tk()
myapp = MyApp(root)
root.mainloop()
root = Tk()
myapp = MyApp(root)
root.mainloop()
On Fri, Dec 17, 2010 at 4:35 AM, craf <p...@vtr.net> wrote:
> Hi.
>
> I'm testing this code:
>
> -------------------------------------------------------------------
> from Tkinter import *
>
> class MyApp:
> def __init__(self, parent):
> self.myParent = parent ### (7) remember my parent, the root
> self.myContainer1 = Frame(parent)
> self.myContainer1.pack()
>
> self.button1 = Button(self.myContainer1)
> self.button1.configure(text="OK", background= "green")
> self.button1.pack(side=LEFT)
> self.button1.bind("<Button-1>", self.button1Click) ### (1)
>
> self.button2 = Button(self.myContainer1)
> self.button2.configure(text="Cancel", background="red")
> self.button2.pack(side=RIGHT)
> self.button2.bind("<Button-1>", self.button2Click) ### (2)
>
> def button1Click(self, event): ### (3)
> if self.button1["background"] == "green": ### (4)
> self.button1["background"] = "yellow"
> else:
> self.button2["background"] = "green"
>
> def button2Click(self, event): ### (5)
> self.myParent.destroy() ### (6)
>
>
> root = Tk()
> myapp = MyApp(root)
> root.mainloop()
>
> ---------------------------------------------------------------------
>
> Works without problems, but if I want to get the functions of the class,
> then the problems begin.
>
> from Tkinter import *
>
> class MyApp:
> def __init__(self, parent):
> self.myParent = parent ### (7) remember my parent, the root
> self.myContainer1 = Frame(parent)
> self.myContainer1.pack()
>
> self.button1 = Button(self.myContainer1)
> self.button1.configure(text="OK", background= "green")
> self.button1.pack(side=LEFT)
> self.button1.bind("<Button-1>", self.button1Click) ### (1)
>
> self.button2 = Button(self.myContainer1)
> self.button2.configure(text="Cancel", background="red")
> self.button2.pack(side=RIGHT)
> self.button2.bind("<Button-1>", self.button2Click) ### (2)
>
> def button1Click(self, event): ¡¡¡FUNCTION OUTSIDE THE CLASS!!!
> if self.button1["background"] == "green": ### (4)
> self.button1["background"] = "yellow"
> else:
> self.button2["background"] = "green"
>
> def button2Click(self, event): ¡¡¡FUNCTION OUTSIDE THE CLASS!!!
> self.myParent.destroy() ### (6)
>
>
> root = Tk()
> myapp = MyApp(root)
> root.mainloop()
>
> What would be the correct way to call them?
>
> Thanks in advance
>
> Regards
>
> Cristian Abarzua F
>
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> Tkinter-discuss@python.org
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>
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