Difference Between Identifier And Variable In Python
distinguishing between identifiers and variables in Python
Difference Between Identifier And Variable In Python
In Python, an identifier is a name used to identify a variable, function, class, module, or other object. It is a user-defined or built-in word or phrase that represents a value or entity in the code. A variable, on the other hand, is a specific type of identifier that holds a value that can be changed or modified during the execution of a program. Variables are used to store and manipulate data within a program, while identifiers are simply names used to reference various elements in the code. Essentially, an identifier is the name given to something, while a variable is a specific instance of that something that can be assigned a value and manipulated.
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1 - An identifier in Python is a name given to entities such as variables, functions, classes, etc., while a variable is a specific type of identifier that is used to store data.
2) Identifiers in Python must follow certain rules such as starting with a letter or underscore, and can consist of letters, digits, and underscores.
3) Variables in Python are used to store and manipulate data during the program execution.
4) Identifiers help uniquely identify different entities in the program, while variables hold specific values assigned to them.
5) It is important to choose descriptive and meaningful identifiers and variables to enhance code readability and maintainability.
6) Variables in Python can change their values during program execution, while identifiers remain constant once assigned.
7) Identifiers serve as labels for different elements in a program, providing a reference to access or manipulate them.
8) Variables are dynamically typed in Python, meaning they can hold different types of data at different points in the program.
9) Identifiers must be unique within their scope, while variables can be re assigned different values within their scope.
10) Understanding the difference between identifiers and variables is crucial for effective programming and debugging in Python.
Considering these points, a training program for students could focus on the importance of choosing meaningful identifiers and variables, understanding their roles in program execution, and practicing good naming conventions to write clean and efficient Python code.
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