(self)
| 181 | self.canvas.yview_moveto(fraction) |
| 182 | |
| 183 | def lastvisiblechild(self): |
| 184 | if self.children and self.state == 'expanded': |
| 185 | return self.children[-1].lastvisiblechild() |
| 186 | else: |
| 187 | return self |
| 188 | |
| 189 | def update(self): |
| 190 | if self.parent: |