Return a count of messages in the mailbox.
(self)
| 468 | return key in self._toc |
| 469 | |
| 470 | def __len__(self): |
| 471 | """Return a count of messages in the mailbox.""" |
| 472 | self._refresh() |
| 473 | return len(self._toc) |
| 474 | |
| 475 | def flush(self): |
| 476 | """Write any pending changes to disk.""" |