How to declare the Python variable part-1 | தமிழ் #coding #techtutorial смотреть онлайн

In this video, I'll be teaching you how to declare the Python variable part-1. This is the first of a two-part series about Python programming.

If you're new to Python or you're a beginner programmer, then this video is a great resource for you. In this video, I'll be teaching you the basics of Python programming, including how to declare variables and how to use them in your code. I hope you find this video useful!

0:04 Python Variable
0:44 Python Variable handon-demo
1:29 Adding same different variable.
1:36 Assigning Recall
2:40 Conclusion

In Python, declaring a variable is a straightforward process. You don't need to explicitly declare the data type of the variable; Python infers the data type based on the value assigned to the variable. Here's how you declare a variable in Python:

python

variable_name = value
Here's a breakdown of the components:

Variable Name: This is the name you choose for your variable. It should follow Python's variable naming rules, which include:

Variable names must start with a letter (a-z, A-Z) or an underscore (_).
The remaining characters in the variable name can be letters, underscores, or digits (0-9).
Variable names are case-sensitive, so "myVariable" and "myvariable" are considered different variables.
Assignment Operator (=): The equal sign (=) is used to assign a value to the variable.

Value: This is the actual data that you want to store in the variable. The value can be of various data types, such as integers, strings, lists, or custom objects.

Here are some examples of variable declarations:

python

# Integer variable
age = 25

# String variable
name = "John Doe"

# List variable
fruits = ["apple", "banana", "cherry"]

# Boolean variable
is_valid = True

# Floating-point variable
price = 12.99
You can also declare multiple variables on the same line by separating them with commas:

python
Copy code
x, y, z = 10, "Hello", True
In this example, x is assigned the value 10, y is assigned the string "Hello," and z is assigned the Boolean value True.

Python is dynamically typed, which means you can reassign variables to different data types as needed:

python
Copy code
x = 10 # x is an integer
x = "Hello" # x is now a string
Python determines the variable's data type based on the current value assigned to it, making it a versatile and flexible language for variable declaration.