Andre Merzky added the comment:
FWIW, a workaround seems to be a nested try/except clause:
try:
try:
do_lots_of_work()
except RuntimeError as e:
print 'signal handling worked'
except RuntimeError:
print 'signal handling delayed'
I did a stress test over 100k runs, and got no unexpected behavior that way. I
am not sure if the underlying race condition is just hidden, or if the inner
except clause triggers the signal handling code internally -- either way, while
cumbersome to use, it seems to work.
I'd still appreciate feedback on a cleaner solution.
Thanks, Andre.
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<http://bugs.python.org/issue27889>
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