(self, pn, page)
| 269 | return None |
| 270 | |
| 271 | def __setitem__(self, pn, page): |
| 272 | if not pn in self.pages: # Add list as |
| 273 | self.pages[pn] = [] |
| 274 | self.pages[pn].append(page) |
| 275 | page.setParent(self) |
| 276 | |
| 277 | def _get_ancestors(self): |
| 278 | """Root of the chain of element properties, searching upward in the |