argparse_globals_example.py

import argparse

GLOBAL_X = None

def dialog_fn():
  return GLOBAL_X

def matlab_ported_fn():
  print(dialog_fn())
  
def main():
  global GLOBAL_X
  parser = argparse.ArgumentParser()
  parser.add_argument('-x', type=int, required=True)
  ns = parser.parse_args()
  GLOBAL_X = ns.x
  matlab_ported_fn()