cpython: 44b69e95d276 (original) (raw)
Mercurial > cpython
changeset 86628:44b69e95d276
Issue #11161: Update the documentation for ProcessPoolExecutor to note that it will not work in the interactive shell. [#11161]
| bquinlan brian@sweetapp.com | |
|---|---|
| date | Sat, 26 Oct 2013 04:49:55 +1100 |
| parents | e2c3f638c3d0 |
| children | 687eba0182d7 |
| files | Doc/library/concurrent.futures.rst |
| diffstat | 1 files changed, 3 insertions(+), 0 deletions(-)[+] [-] Doc/library/concurrent.futures.rst 3 |
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--- a/Doc/library/concurrent.futures.rst
+++ b/Doc/library/concurrent.futures.rst
@@ -164,6 +164,9 @@ uses a pool of processes to execute call
allows it to side-step the :term:Global Interpreter Lock but also means that
only picklable objects can be executed and returned.
+The __main__ module must be importable by worker subprocesses. This means
+that :class:ProcessPoolExecutor will not work in the interactive interpreter.
+
Calling :class:Executor or :class:Future methods from a callable submitted
to a :class:ProcessPoolExecutor will result in deadlock.