text: # initialize data to be stored in files, pickles, shelves
  
  # records
  bob = {'name': 'Bob Smith', 'age': 42, 'pay': 30000, 'job': 'dev'}
  sue = {'name': 'Sue Jones', 'age': 45, 'pay': 40000, 'job': 'hdw'}
  tom = {'name': 'Tom',       'age': 50, 'pay': 0,     'job': None}
  
  # database
  db = {}
  db['bob'] = bob
  db['sue'] = sue
  db['tom'] = tom
  
  if __name__ == '__main__':       # when run as a script
      for key in db:
          print(key, '=>\n  ', db[key])
  