kill me

lulz.py

import os
import sys
import signal
import subprocess

currentPID = os.getpid()
if 'pid' not in os.listdir():
    with open('pid', mode='w') as f:
        print(str(currentPID), file=f)
else:
    with open('pid', mode='r') as f:
        try:
            os.kill(int(f.read()), signal.SIGTERM)
            print("Terminating previous instance of " +
                  os.path.realpath(__file__))
        except ProcessLookupError:
            subprocess.run(['rm', 'pid'])
    with open('pid', mode='w') as f:
        print(str(currentPID), file=f)