Python Introduction

Python Tutorial

🐍 Python Introduction

Python is a high-level, general-purpose programming language known for its simplicity, readability, and versatility. It was created by Guido van Rossum and first released in 1991.

Python is widely used in:

  • Web development

  • Data science & analytics

  • Machine learning & AI

  • Automation & scripting

  • Game development

  • Software development

  • Cybersecurity

✅ Why Learn Python?

Feature Benefit
Easy to learn Simple and readable syntax
Cross-platform Works on Windows, macOS, Linux, etc.
Versatile Can build almost any type of software
Huge libraries Supports AI, data science, web apps, gaming, etc.
Strong community Easy support and learning resources

🔧 How Python Works

Python is an interpreted language, meaning code is executed line-by-line, not compiled.

Example:


When you run this program, Python interpreter processes it and prints:

Hello, Python!

🧱 Python Syntax Basics

 Variables


 Data Types


 Comments

# This is a single-line comment

“””
This is a
multi-line comment
“””

🔁 Control Statements

 If-Else

num = 10

if num > 5:
print(“Greater than 5”)
else:
print(“Less or equal to 5”)

🔁 Looping

 For Loop

for i in range(5):
print(i)

 While Loop

count = 1
while count <= 5:
print(count)
count += 1

📦 Functions

def greet(name):
print("Hello", name)greet(“Rahul”)

📚 Python Libraries (Examples)

Category Example Library
Web Development Django, Flask
Data Science NumPy, Pandas, Matplotlib
Machine Learning TensorFlow, Scikit-Learn, PyTorch
Automation Selenium, PyAutoGUI

🚀 Summary

Python is:

  • Beginner-friendly

  • Flexible

  • In-demand

  • Great for both small scripts and large applications

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