How can I check if the Main Thread is alive from another ( non-daemon, child ) thread?
The child thread is a non-daemon thread and I'd like to check if the Main thread is still running or not, and stop this non-daemon thread based on the result.
( Making the thread daemon is not good for my situation because my thread writes to stdout
which creates problems when the thread is set as a daemon)
Using python 2.7
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