If queue is empty, wait until an item maybe is available, but don't consume it.
(self, block=True, timeout=None)
| 112 | raise queue.Empty |
| 113 | |
| 114 | def wait(self, block=True, timeout=None): |
| 115 | """If queue is empty, wait until an item maybe is available, |
| 116 | but don't consume it. |
| 117 | """ |
| 118 | if timeout is not None and timeout < 0: |
| 119 | raise ValueError("'timeout' must be a non-negative number") |
| 120 | self._count.wait(block, timeout) |
| 121 | |
| 122 | def empty(self): |
| 123 | """Return True if the queue is empty, False otherwise (not reliable!).""" |