(self)
| 102 | self.out_var.set(current) |
| 103 | |
| 104 | def press_3(self): |
| 105 | current = self.out_var.get() |
| 106 | if current == "": |
| 107 | self.out_var.set(3) |
| 108 | else: |
| 109 | current += str(3) |
| 110 | self.out_var.set(current) |
| 111 | |
| 112 | def press_0(self): |
| 113 | current = self.out_var.get() |