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Addressing multiprocessing DeprecationWarning with Python 3.12 #656

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Addressing multiprocessing DeprecationWarning with Python 3.12 #656

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6 changes: 2 additions & 4 deletions vip_hci/config/utils_conf.py
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Original file line number Diff line number Diff line change
Expand Up @@ -474,15 +474,13 @@ def pool_map(nproc, fkt, *args, **kwargs):
else:
# Check available start methods and pick accordingly (machine-dependent)
avail_methods = multiprocessing.get_all_start_methods()
if 'fork' in avail_methods:
if 'forkserver' in avail_methods:
# faster when available
warnings.filterwarnings("error") # allows to catch warning as error
try:
multiprocessing.set_start_method("fork", force=True)
multiprocessing.set_start_method("forkserver", force=True)
except (DeprecationWarning, OSError):
multiprocessing.set_start_method("spawn", force=True)
elif 'forkserver' in avail_methods:
multiprocessing.set_start_method("forkserver", force=True)
else:
multiprocessing.set_start_method("spawn", force=True)
warnings.resetwarnings() # reset warning behaviour to default
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