Python Variables: The Heart of Dynamic Programming

Python Variables: The Heart of Dynamic Programming

In this video you will learn about python variables.
How to declare, assign value to variable, reassign value, delete variable and multiple assignments.

In Python, a variable is a name that you assign to a value.
Variables are used to store and manipulate data in your programs.

1. Variable Naming Rules:
a) Variable names are case-sensitive (e.g., num and Num are treated as different variables).
b) Variable names must start with a letter (a-z, A-Z) or an underscore (_) followed by letters, numbers.
c) Python keywords or reserved words cannot be used as variable names.

2. Variable Assignment:
You can assign a value to a variable using the = operator.

3. Data Types:
Python is dynamically typed, it will determine the data type based on the assigned value.

4. Reassigning Variables:
You can change the value of a variable by assigning a new value to it.

5. Deleting Variables:
You can delete a variable using the del statement.

6. Multiple Assignments:
Python allows you to assign multiple variables in a single line.

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