[Tutor] Minesweeper implementing 20%, weird problem with matrixes

[Alberto Troiano]

Hey tutors

I think I got this a little, but I have a very weird problem

This is the code I'm using:

######################

class buscaminas(object):

    def __init__(self):
        self.col=0
        self.marcas=Tkinter.BooleanVar()
        self.color=Tkinter.BooleanVar()
        self.sonido=Tkinter.BooleanVar()
        self.fil=0
        self.byob=0
        menubar= Menu(root)
        archivo=Menu(menubar,tearoff=0)
        
archivo.add_command(label="Nuevo",underline=0,command=self.initialize)
        archivo.add_radiobutton(label="Fácil",underline=0,command=lambda: 
self.nivel(9,9,10))
        archivo.add_radiobutton(label="Medio",underline=0,command=lambda: 
self.nivel(16,16,40))
        archivo.add_radiobutton(label="Dificil",underline=0,command=lambda: 
self.nivel(16,30,99))
        
archivo.add_radiobutton(label="Personalizado",underline=0,command=self.hello)
        archivo.add_separator()
        archivo.add_checkbutton(label="Marcas 
(?)",variable=self.marcas,underline=0,command=self.hello)
        
archivo.add_checkbutton(label="Color",underline=0,command=self.hello)
        
archivo.add_checkbutton(label="Sonido",underline=1,command=self.hello)
        archivo.add_separator()
        archivo.add_command(label="Mejores 
Tiempos",underline=8,command=self.hello)
        archivo.add_separator()
        archivo.add_command(label="Salir",underline=0,command=root.destroy)
        menubar.add_cascade(label="Juego",underline=0,menu=archivo)
        help = Menu(menubar, tearoff=0)
        help.add_command(label="Contenido", command=self.hello)
        help.add_command(label="Indice de ayuda", command=self.hello)
        help.add_command(label="Como usar la ayuda", command=self.hello)
        help.add_separator()
        help.add_command(label="Acerca de...", command=self.hello)
        menubar.add_cascade(label="Ayuda",underline=1, menu=help)
        root.config(menu=menubar)
        root.bind_all("<F1>",lambda d: self.hello())
        root.bind_all("<F2>",lambda s: self.initialize())
        root.bind_all("<Control-x>",lambda x: root.destroy())

    def hello(self):
        print "funca"

    def initialize(self):
        self.buttonmatrix=[]
        self.statematrix=[]
        self.bombmatrix=[]
        for i in range(self.fil):
            aux=[]
            for j in range(self.col):
                aux.append(None)
            self.buttonmatrix.append(aux)
            self.bombmatrix.append(aux)
            self.statematrix.append(aux)
        self.bombs()

    def nivel(self,f,c,b):
        self.col=c
        self.fil=f
        self.byob=b
        self.initialize()

    def bombs(self):
        c=0
        while not c==self.byob:
            fi=random.randrange(self.fil)
            co=random.randrange(self.col)
            if self.bombmatrix[fi][co]==None:
                self.bombmatrix[fi][co]=9
                c+=1
        self.numbers()

    def putnumber(self,row,column):
        c=0
        fi=row-1
        ci=column-1
        ff=row+2
        cf=column+2
        for i in range(fi,ff):
            for j in range(ci,cf):
                if (i<0) or (i>=self.fil) or (j<0) or (j>=self.col):
                    pass
                elif self.bombmatrix[i][j]==9:
                    c+=1
                else:
                    pass
        return c

    def numbers(self):
        for i in range(self.fil):
            for j in range(self.col):
                if self.bombmatrix[i][j]==9:
                    pass
                else:
                    self.bombmatrix[i][j]=self.putnumber(i,j)
        self.nuevo()

    def nuevo(self):
        for el in self.buttonmatrix:
            print el
        for l in self.statematrix:
            print l
        for e in self.bombmatrix:
            print e

def main():
    global root
    root=Tk()
    root.title("Buscaminas")
    root.iconbitmap("images\mina.ico")
    a=buscaminas()
    root.mainloop()

main()

##############

The following variables are the one with the problem:

self.bombmatrix, self.buttonmatrix, self.statematrix

I initialize them by putting None along all the fields (this is to allow the 
user to have any size of matrix) then I charge with numbers the 
self.bombmatrix but weirdly the others variables are filled with the same 
values, which is very strange to me since I'm not assigning them each others

Any hint?

Thanks in advanced and sorry for the long piece of code

Alberto