Python Full Tutorial — Part 1

This is the first part of a complete Python tutorial series by SRJahir Tech. In this part, we will build the foundation — not syntax dumping. Before writing real code, you must understand what Python is, why it exists, and where it is actually used.

What is Python?

Python is a high-level programming language designed to be readable, simple, and powerful. It allows humans to express logic in a way that looks close to plain English.

Python is not slow or weak — it is intentionally designed to prioritize clarity and productivity. Behind the scenes, Python is backed by highly optimized systems written in C.

Why Python Became So Popular

Where Python Is Used in the Real World

Your First Python Program

Let us start with the most basic program. This is not magic — this is simply telling the computer to display text.

Python Example — Hello World

print("Hello, Python!")
  

Explanation:
print() is a built-in function. It sends output to the screen.

How Python Code Executes

Python reads your code line by line from top to bottom. It does not guess. It does exactly what you instruct — nothing more, nothing less.

Installing Python (Beginner Friendly)

  1. Go to python.org
  2. Download the latest Python version
  3. During installation, tick Add Python to PATH
  4. Finish installation

Check Python Installation

Open terminal or command prompt and type:

Terminal Command

python --version
  

If Python is installed correctly, you will see the version number.

Important Rule Before Moving Forward

Do not rush. Python rewards people who understand logic, not people who copy code blindly.

In the next part, we will understand variables, data types, and how Python stores information in memory.

Disclaimer:
This tutorial is for educational purposes only. SRJahir Tech does not guarantee job placement or outcomes. Learning requires consistent practice and understanding.