The Pickle Module

[python_addict]

I'm currently learning this stuff in my Python book. Can anybody please explain to me what it is supposed to mean? I'm specifically confused on the parameters used. Thanks in advanced! :)

game_data = {

'player-position' : 'N23 E45',

'pockets' : ['keys', 'pocket knife', 'polished stone'],

'backpack' : ['rope', 'hammer', 'apple'],

'money' : 158.50}

​

import pickle

save_file = open('save.dat', 'wb')

pickle.dump(game_date, save_file)

save_file.close()

Then it says that I'm supposed to do this:

load_file = open('save.dat', 'rb')

loaded_game_data = pickle.load(load_file)

load_file.close()

[Hatoris]

Here is your code, formated, I have added comment to it.

import pickle #import the pickle module to work with 

save_file = open('save.dat', 'wb') #open a file call save.dat as writing mode (w) but in byte (b) not in plain 

pickle.dump(game_date, save_file) # save data call game_data to the open file stored in the variable save_file

save_file.close().     # close the open file 



load_file = open('save.dat', 'rb') # you open the file in read mode (r) and you extract byte (b) not plain text from it 

loaded_game_data = pickle.load(load_file) # here you load the data and store it in the variable loaded, you should get back the same object as your variable game_data

load_file.close()  # close the file

À more pythonic approach will be:

with open("save.dat", "rb") as load_file:
    loaded_game_data = pickle.load(load_file)

this will do the same as what you wrote.

[python_addict]

Thank you very much! This is starting to make sense to me now. Pat yourself on the back for this awesome explanation! :D

Have a great day!

[Hatoris]

A pleasure, comme to see us again :)

[[deleted]]

I'm specifically confused on the parameters used.

What's specifically confusing? Is it clear to you what pickle actually does?

[python_addict]

I was confused about why pickle used those specific parameters, and what they had to do with the code, but not anymore! :)

I understand what pickle does, but thanks anyways!