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Diffstat (limited to 'Doc/library/concurrent.futures.rst')
| -rw-r--r-- | Doc/library/concurrent.futures.rst | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Doc/library/concurrent.futures.rst b/Doc/library/concurrent.futures.rst index 0495737..08c926a 100644 --- a/Doc/library/concurrent.futures.rst +++ b/Doc/library/concurrent.futures.rst @@ -175,6 +175,8 @@ to a :class:`ProcessPoolExecutor` will result in deadlock. An :class:`Executor` subclass that executes calls asynchronously using a pool of at most *max_workers* processes. If *max_workers* is ``None`` or not given, it will default to the number of processors on the machine. + If *max_workers* is lower or equal to ``0``, then a :exc:`ValueError` + will be raised. .. versionchanged:: 3.3 When one of the worker processes terminates abruptly, a |