Thank you for reading this.
How do I reference the_canvas from my solve() method? Despite hours of
searching I haven't been able to solve this or find a similar example. All that
I've gained is a headache.
Exception in Tkinter callback
Traceback (most recent call last):
File "/usr/lib/python3.4/tkinter/__init__.py", line 1536, in __call__
return self.func(*args)
File "/home/pi/sudoku.py", line 64, in solve
self.the_canvas.create_text(20,20,text="5")
AttributeError: 'Sudoku' object has no attribute 'the_canvas'
from tkinter import *
class Sudoku(Frame):
def __init__(self, parent):
Frame.__init__(self, parent)
self.parent = parent
parent.title("Sudoku solver")
#create canvas
the_canvas = Canvas(width = 300, height = 300)
the_canvas.pack(side = TOP, anchor = NW, padx = 10, pady = 10)
#create grid
#create solve button
solve_button = Button(the_canvas, text = "Solve", command = self.solve,
anchor = W)
solve_button.configure(width = 5, activebackground = "#33B5E5",
relief = FLAT)
solve_button.pack(side = TOP)
solve_button_window = the_canvas.create_window(250, 250, anchor=NW,
window=solve_button)
def solve(self):
print("solve called")
self.the_canvas.create_text(20,20,text="5")
def main():
root = Tk()
app = Sudoku(root)
app.mainloop()
if __name__ == '__main__':
main()
--
Regards,
Phil
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