Python Basics

Pickling and Unpickling : Pickle is a standard module which serializes and deserializes a python object structure. Pickle module accepts any python object, converts it into a string representation and dumps into a file(by using dump() function ) which can be used later this process is called pickling. Unpickling is a process of retrieving original python object from the stored string representation for use. Pickling is a process whereby a python object hierarchy is converted into a byte stream and unpickling is the inverse operation, whereby a byte stream is converted back into an object hierarchy. Ex: import pickle a = [ "apple" , "banana" ] file_Name = "abc" # open the file for writing fileObj = open( file_Name , "wb" ) # This writes the object a to the file pickle.dump( a , fileObj) fileObj.close() fileObj = open( file_Name , "r") # load the object from the file into variable b = pickle.load( fileO