#python object
1. What is a python object
2. Detailed pickle pickle
1. What is a python object
Python's built-in object types mainly include numbers, strings, lists, tuples, dictionaries, sets, and more. In fact, in python, everything is an object.
2. Detailed pickle pickle
In python, if we have some objects that need to be stored persistently without losing the type and data of our object, we need to serialize these objects. After serialization, when we need to use it, we restore the original data. . This process of serialization, we call it pickle.
#pickle pickled
Import pickle
#dumps (object ) serialize the object
lista= [“mingyue ”,”jishi ”,”you ”]
listb=pickle.dumps(lista)
print listb
#loads( string) restores the object as it is, and the object type is also restored to the original format
listc=pickle.loads(listb)
print listc
#dump (object , file ) stores the object in a file and serializes it
group1= (“bajiu ”,”wen ”,”qingtian ”)
f1=file(‘1.pk1’,’wb’)
pickle.dump(group1,f1,Ture)
f1.close()
#load (object , file ) restores the data stored in the file by dump ()
f2=file(‘1.pk1’,’rb’)
t=pickle.load(f2)
print t
f2.close()