Cedric-M/Pickle

Proofs of concepts using Pickle through Jupiter notebooks

Pickle

Proofs of concepts using Pickle and Dill through Jupiter notebooks

Dill extends python’s pickle module for serializing and de-serializing python objects to the majority of the built-in python types.

Serialization is the process of converting an object to a byte stream, and the inverse of which is converting a byte stream back to on python object hierarchy.

If you don't have Dill installed yet, please run the following command:

pip install dill

Requirement already satisfied: dill in /home/ced/anaconda3/lib/python3.7/site-packages (0.3.1.1)
Note: you may need to restart the kernel to use updated packages.

import dill

I) Save your entire Jupyter notebook session

favorite_color = {"lion":"yellow", "kitty":"red"}

dill.dump_session('save-dill-notebook_env.db')

print(favorite_color)

{'lion': 'yellow', 'kitty': 'red'}

Try to restart the Jupiter local server using Jupyter > Kernel > Restart Kernel

print(favorite_color)

---------------------------------------------------------------------------

NameError                                 Traceback (most recent call last)

<ipython-input-1-9fd5ad14973e> in <module>
----> 1 print(favorite_color)


NameError: name 'favorite_color' is not defined

The error above is what we are trying to solve using Dill

II) Load the dictionary back from the Dill file.

import dill
dill.load_session('save-dill-notebook_env.db')

favorite_color is now:

print(favorite_color)

{'lion': 'yellow', 'kitty': 'red'}

This Pickle exemple have been made using Python UsingPickle doc

import pickle

I) Save a dictionary into a pickle file

favorite_color = {"lion":"yellow", "kitty":"red"}

pickle.dump( favorite_color, open( "save-pickle.p", "wb"))

print(favorite_color)

{'lion': 'yellow', 'kitty': 'red'}

Try to restart the Jupiter local server

print(favorite_color)

---------------------------------------------------------------------------

NameError                                 Traceback (most recent call last)

<ipython-input-1-9fd5ad14973e> in <module>
----> 1 print(favorite_color)


NameError: name 'favorite_color' is not defined

The error above is what we are trying to solve using Pickle

II) Load the dictionary back from the pickle file.

import pickle
favorite_color = pickle.load( open("save-pickle.p", "rb"))

favorite_color is now:

print(favorite_color)

{'lion': 'yellow', 'kitty': 'red'}