Python Basics

Beginner

15 min

What is Python Basics?

Python is a programming language for data analysis and automation, helping you process data and automate repetitive tasks.

Key Components:

Readable syntax
Dynamic typing
Rich ecosystem
Cross-platform

Why it matters

Automation

Automate Excel and file processing

Data Cleaning

Clean and transform datasets

Analysis

Perform statistical analysis

Visualization

Create charts and plots

Key Concepts

Variables

Store data values

Example: x = 5...

Lists

Store multiple items

Example: items = [1,2,3]...

Loops

Repeat actions

Example: for i in range(5):...

Functions

Reusable code blocks

Example: def add(a,b):...

How to use

Install Python

Download from python.org

Choose IDE

VS Code, PyCharm, or Jupyter

Create file

New .py file

Write code

Start with print("Hello")

Run script

Execute in terminal

Build

Add more functionality

Example

Goal: Calculate average

numbers = [10, 20, 30]

average = sum(numbers) / len(numbers)

print(average)

Result: Prints 20.0

Pro Tips

•Use descriptive names: Not x, use total_sales
•Comment code: Explain complex logic
•Start simple: Build gradually

Practice

Write a script that reads a CSV file and prints first 5 rows

Next: Pandas