Postgres server launcher so that I can pretend the server stays in the foreground

launch.py

#!/usr/bin/env python3                                                           

import subprocess
import sys

def main(argv):
  print(subprocess.getoutput("pg_ctl -D /var/lib/pgsql/data -l logfile start"))

  try:
    tail = subprocess.Popen(["tail", "-F", "logfile"], stdout=sys.stdout)
    tail.wait()
    pass
  except:
    print("Took exception; killing server...")
    pass

  print(subprocess.getoutput("pg_ctl -D /var/lib/pgsql/data -l logfile stop"))

  return 0

if __name__ == "__main__":
  sys.exit(main(sys.argv))
  pass