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Diffstat (limited to 'Lib/multiprocessing/synchronize.py')
| -rw-r--r-- | Lib/multiprocessing/synchronize.py | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Lib/multiprocessing/synchronize.py b/Lib/multiprocessing/synchronize.py index be56a5b..08d7c5d 100644 --- a/Lib/multiprocessing/synchronize.py +++ b/Lib/multiprocessing/synchronize.py @@ -21,6 +21,17 @@ from multiprocessing.process import current_process from multiprocessing.util import Finalize, register_after_fork, debug from multiprocessing.forking import assert_spawning, Popen +# Try to import the mp.synchronize module cleanly, if it fails +# raise ImportError for platforms lacking a working sem_open implementation. +# See issue 3770 +try: + from _multiprocessing import SemLock +except (ImportError): + raise ImportError("This platform lacks a functioning sem_open" + + " implementation, therefore, the required" + + " synchronization primitives needed will not" + + " function, see issue 3770.") + # # Constants # |