diff options
Diffstat (limited to 'Lib/selectors.py')
| -rw-r--r-- | Lib/selectors.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Lib/selectors.py b/Lib/selectors.py index a9a0801ef0..90251dc34a 100644 --- a/Lib/selectors.py +++ b/Lib/selectors.py @@ -552,7 +552,10 @@ if hasattr(select, 'kqueue'): def select(self, timeout=None): timeout = None if timeout is None else max(timeout, 0) - max_ev = len(self._fd_to_key) + # If max_ev is 0, kqueue will ignore the timeout. For consistent + # behavior with the other selector classes, we prevent that here + # (using max). See https://bugs.python.org/issue29255 + max_ev = max(len(self._fd_to_key), 1) ready = [] try: kev_list = self._selector.control(None, max_ev, timeout) |