import pickle
from pprint import pprint

class GamePrefs:
    def __init__(self, name = 'undefined', email = 'undefined', resolution = '1024x768', volume = '100'):
        self.name = name
        self.email = email
        self.resolution = resolution
        self.volume = volume

userPrefs = GamePrefs()

print("Pref object with default values")
pprint(vars(userPrefs))

userPrefs.name = "Joe Mama"
userPrefs.email = "joe.mama@roche.com"
userPrefs.resolution = "1920x1080"
userPrefs.volume = "50"

print("Pref object with user values")
pprint(vars(userPrefs))

filename = 'prefs.cfg'
# because we're saving an object we need to open the file in binary mode
filehandler = open(filename, 'wb')
pickle.dump(userPrefs,filehandler)
filehandler.close()

filehandler = open(filename, 'rb')
myPrefs = pickle.load(filehandler)
filehandler.close()

print("Pref object after pickle dump and load")
pprint(vars(myPrefs))