Let a worker process tell the Linux kernel to kill it first.

kill-the-worker.py

import os

def _oom_adj_self():
    oom_adj = '/proc/%d/oom_adj' % os.getpid()
    if os.path.exists(oom_adj):
        with open(oom_adj, 'w') as oom:
            # OOM killer, please kill this process first.
            oom.write('15')