Python Tutorial

Python Tutorial



1. Introduction to Python

What is Python?

- Python is an interpreted, high-level programming language.

- It is widely used in web development, data science, automation, AI/ML, and more.

- It has simple syntax, making it great for beginners.



Installing Python:

1. Download Python from python.org.

2. Install it and check the version: python --version

3. Use IDLE, VS Code, or PyCharm for writing Python programs.



2. Python Basics

Hello World:

print("Hello, World!")



Variables and Data Types:

name = "Arun" # String

age = 20 # Integer

pi = 3.14 # Float

is_cse_student = True # Boolean



Taking User Input:

name = input("Enter your name: ")

print("Hello, " + name)

, Type Conversion:

num = int(input("Enter a number: "))

print("Double:", num * 2)



3. Control Flow

Conditional Statements:

age = int(input("Enter your age: "))

if age >= 18:

print("You are an adult.")

else:

print("You are a minor.")



Loops:

For Loop:

for i in range(1, 6):

print(i)



While Loop:

num = 1

while num <= 5:

print(num)

num += 1



4. Functions in Python:

def greet(name):

print("Hello, " + name)