In this chapter, we will explore the concept of loops, specifically focusing on "for loops." Loops are a fundamental concept in programming that allow us to repeat a block of code multiple times without having to write it out repeatedly. This can be incredibly useful when you want to perform the same action multiple times, such as moving our ninja across the grid to collect sushi.

What is a For Loop?

A "for loop" is a control flow statement that allows code to be executed repeatedly based on a given condition. The loop will continue to execute as long as the condition is true. Once the condition is false, the loop will stop.

The basic syntax of a for loop in Python is as follows:

• Initialization: The range(5) function generates a sequence of numbers from 0 to 4. This implicitly initializes the loop variable i to 0 at the start of the loop.

• Condition: The loop continues as long as there are numbers left in the sequence generated by range(5). In this case, it will iterate over 0, 1, 2, 3, and 4.

• Increment: The loop variable i is automatically incremented by 1 after each iteration, as it progresses through the sequence generated by range(5).

Let's see an example of a for loop in action with our ninja:

In this example, the ninja will move up and pick sushi six times. The loop variable i starts at 0 and increments by 1 each time the loop runs, stopping when i reaches 6.