1.3 Pickle module in Python

-

v  Pickle Module: -

  • The pickle module in Python is used to serialize and deserialize Python objects.
  • Serialization, also called pickling, is the process of converting a Python object into a byte stream so that it can be stored in a file or sent over a network.
  • Deserialization, also called unpickling, is the process of converting a byte stream back into a Python object.
  • The pickle module is useful for saving Python objects such as lists, dictionaries, sets, or custom objects in binary format.
  • It can also be used to transfer Python data between programs, store program states, or save machine learning models for later use.
  • We need to install pickle module before working upon its inbuilt methods using command prompt.

  • The pickle module provides two methods: dump( ) and load( ).


1. The pickle.dump( ) function serializes a Python object and writes it to a file in binary format.

                     Syntax: -  

                        Example: -


                    Output: -



2. The pickle.load( ) function deserializes (unpickles) a Python object from a binary file.

                             Syntax: -


                              Example: -



                        Output: -























Popular posts from this blog

operators in c programming

-
Image
v Operators: - An operator is a symbol that tells or intimates to the compiler to perform specific calculations or manipulations on one or more operands. Operators are essential for performing computations and making decisions in programs.   a + b is an operation a & b are operands + is an operator   Based on number of operands involved: 1.      Unary operators: - unary operators can be applied on only one operator. Example: -   ++ , -- , - (unary minus) , sizeof , ~ (compliment) , ! (not).   2.      Binary operators: - binary operators can be applied on two operands. Example: -   + , -,   * , / , etc.   3.    Ternary operators: - Ternary operator can be applied on three operands. Example: -   ?: (ternary conditional operator).   C supports several operators, can be classified into following...
Read more

2.4 Arrays in c programming

-
Image
  Arrays: - An array is a collection of elements of the same data type stored in contiguous memory locations. It is a derived data type and a homogenous data structure. It is a variable which can store multiple values of the same type under a single variable name, making it easier to manage and manipulate related data. The size of an array is fixed. To access the elements of an array, we use indexes or subscripts accordingly. array index or subscript is used to identify array elements address. Array index or subscript starts with 0 to n-1.   Declaration of an array: - The declaration of an array means telling the compiler to create an array variable and reserving memory for a fixed number of elements of the same data type. Initialization of an array: - Initializing an array means assigning initial values to its elements. Types of arrays: - Arrays are classified based on the number of dimensions they have:             ...
Read more

2.1 Control statements in C programming (sequential & conditional)

-
Image
Control statements in C: - C is a structure-orientated programming language; the statements that are used to control the flow of execution of a program are called control structures. The statements provide a specific order to execute the C program. In C programming, we have four types of control structures. Sequential control structures Conditional control structures Iterative control structures Jumping control structures   1) Sequential control structures: - The C program is a collection of instructions or set of statements which are executed sequentially in a user-specific order. No statement is slipped, and no statement is executed more than once.                   Syntax: -                Flow chart: -                Example: - Output: - 1) Conditional control structures: - It is also known as selection, branchi...
Read more