It seems to be the best among the basic courses of Python. Even if you have taken other introductory courses, I recommend you to watch it at least once for review.

kimostory

6 hours. That's how long it takes to become a Python developer.
We select only the core content / quizzes and explanations for each chapter / and explain it very easily with real-life examples.
And it's completely free.

nadocoding

Free Python Tutorial (Basic) - Become a Developer in 6 Hours

입문

초급

중급이상

파이썬

Python

Introduction & Settings

Data type

Operator

String processing

Data Structure

Control Statement

Function

Input/Output

Class

Exception Handling

Module and Package