Python Advanced Tutorial 11 - Pickle

This is tutorial covering how to use pickle to serialize python object hierarchies. Saving lists, dictionaries and custom classes. All Links and Slides will be in the description. Subscribe for more cool stuff!

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[DrapsTV]

@trsk I just follow the conventions that I've become accustomed to over the years... mixedCase for variables & Functions, CamelCase for classes, ALL_CAPS for constants, etc.
I'll make the move sooner rather than later I suppose.

[rupeshegishte]

Hello,
If i dump "ID 2" in script and now in my script two ID available,
but now i want to print only second ID output how is this possible ??

reply me

[jaypratappandey]

@Draps Can I load mine CSV/txt file and then another text file, and extracting the matching words.

[killboy]

Would Pickle be able to dump and load a List populated with Class objects? e.g:


class Item()
def __init__(self, name, material):
self.name = name
self.material = material

def explain(self):
print self.name
print self.material



myList = [Item("Table", "Wood"), Item("Window", "Glass"))


Could Pickle dump and load 'myList'?

[petrockspiracy]

I get maximum recursion error if I try to dump an instance of my class to a pkl file. Absolutely not a clue why, very annoying :( Works fine if I try my main class.

Edit: I think it is to do with my class having bs4.navigable_string objects or something apparently? But I deleted those and it still doesn't work. Guess I just won't use it :P

[TimocinZ]

Can i use this to send a list of string to my iphone application? If i can is it better/faster than json?

[vikcy]

i have a python list of python visual object" 3d position vector". i tried to pickle that list but i am getting a run time error "Pickling of instances is not enabled". May i request your comment on this.

[aurarueda]

Si yo tengo creado un archivo .py que contiene varios diccionarios y quisiera modificar desde la consola el valor de alguno de esos diccionarios con pickle ¿como lo haría? Gracias

[aurarueda]

si en este caso  no quisiera leer el diccionario sino solo la lista como lo haría..?? por que cuando utilizo pickle.load me carga  lo primero que encuentre en el archivo en este caso el dict1 

[AzizSobirov]

What is pickle you may ask?
Here is the answer: