diff options
Diffstat (limited to 'Lib/concurrent/futures/process.py')
| -rw-r--r-- | Lib/concurrent/futures/process.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Lib/concurrent/futures/process.py b/Lib/concurrent/futures/process.py index 07b5225..1299390 100644 --- a/Lib/concurrent/futures/process.py +++ b/Lib/concurrent/futures/process.py @@ -334,6 +334,9 @@ class ProcessPoolExecutor(_base.Executor): if max_workers is None: self._max_workers = os.cpu_count() or 1 else: + if max_workers <= 0: + raise ValueError("max_workers must be greater than 0") + self._max_workers = max_workers # Make the call queue slightly larger than the number of processes to |