meaning in python variable

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In Python, a variable is a named location in memory that stores a value. Variables are used to store and manipulate data during the execution of a program. Each variable has a name, a data type, and a value associated with it. Understanding the concept of variables is fundamental to programming in Python and other programming languages.

Declaring and Assigning Variables

The process of creating a variable involves declaring its name and assigning a value to it:

    age = 25
    name = "Alice"
    pi = 3.14

Variable Naming Rules

Python has certain rules for naming variables:

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  • Variable names must start with a letter or underscore (_), followed by letters, digits, or underscores.
  • Variable names are case-sensitive (“age” and “Age” are different variables).
  • Avoid using Python keywords as variable names.

Using Variables

Variables can be used in calculations, operations, and expressions:

    radius = 5
    area = 3.14159 * radius ** 2

Benefits and Considerations

Variables provide a way to store and manipulate data, making code more readable and flexible. However, proper variable naming and organization are important for code clarity and maintainability.


Understanding the concept and meaning of variables in Python is essential for writing effective and functional code. Variables enable programmers to work with data and create dynamic and interactive programs.

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