Want to learn how to code? Get hands-on with Python for beginners. Master the basics, solve real-world problems, and confidently build in-demand Python skills for diverse industries.

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The tools that help create a document, a movie, or a game are all programs. This course uses Python as its programming language. Python programmers are in high demand. The programs you’ll learn in this course are specially designed for learners with no programming background. 

You’ll start with simple math, real-world problem-solving, and writing solutions as steps in a simple language. Next, you’ll learn decision-based solutions demonstrated via flowcharts and explained with execution sheets. Finally, you’ll learn to translate your solutions into Python programs using variables, conditional statements, loops, strings, lists, and built-in functions. You’ll also learn to create your own functions in Python.

Plenty of practice programs with the facility of editing and running them in an embedded way will add to your confidence. After completing this course, you can start as a Python developer. Python is used in business, web, healthcare, education, data science, scraping, embedded systems, and games.

Learn to Code: Python for Absolute Beginners




# Repetition

The repetition of an instruction or a group of instructions is a commonly encountered phenomenon in programming called a **loop**. As an example, let's say we want our program to perform the following tasks:
* To read a document or data file line by line repeatedly until the end of the file.
* To draw an image pixel by pixel repeatedly using color values that show it on the screen.
* To iterate through a collection of variables one by one to process its values.
* To compute a result by applying a formula to several values.




# The `for` loop
Let's say we want to display integers from $0$ to $4$. We can simply display the numbers $0$ to $4$ one by one using the `print()` statement. We can also use one variable and print its value repeatedly by changing the value of the variable, as shown below:

# Multiple print statements with help of variable a
a = 0
print(a)
a = 1
print(a)
a = 2
print(a)
a = 3
print(a)
a = 4
print(a)

The code above clearly shows the repetitive use of `print(a)`. The benefit of using a single variable is that we can convert this repetition into a `for` loop. In Python, we use a `for` loop to perform a process repeatedly for a fixed number of iterations. Let’s demonstrate this in the following program:

Learn the loops for a fixed number of iterations in Python.

About the Course

Problem Solving with Simple Programs

Decisions and Branching

Python Basics

Repetition with Loops

Strings and Lists

Functions

Appendix - Complex Programs

Wrap Up

Introduction to Loops