In this tutorial, you will learn how to count iterations in a Python while loop.

Counting iterations can be helpful when you want to track the number of times a loop executes, such as in cases where a specific process or calculation needs to be performed a certain number of times.

By the end of this tutorial, you should be able to use a while loop and a counter variable to easily count iterations in your Python code.

Step 1: Initialize a Counter Variable

To begin counting iterations in a while loop, you first need to create a counter variable. This variable will be used to store the number of loop iterations. Generally, the counter variable is initialized with a value of 0, as shown below:

Step 2: Create a While Loop

Next, you need to create a while loop. The loop will continue executing as long as the specified condition remains true. In this example, we will create a while loop that iterates 10 times. To do this, you can use the following code:

Step 3: Increment the Counter Variable

In the loop body, you need to increment the counter variable by 1 each time the loop executes. This is done using the += operator, as shown below:

This code increases the value stored in the counter variable by 1 in each iteration. As a result, the counter variable keeps a running total of the number of times the loop has been executed.

Step 4: Perform Your Desired Actions

Inside the loop, you can perform any actions or calculations that you want to execute. In this example, we will simply print the current value of the counter variable:

Using this code, each iteration within the loop will display the current value of the counter variable.

Step 5: Test Your Code

Now that you have set up your counter variable and created your while loop, you can run your code to see the output. Below is the full code from the previous steps:

The output of this code should display the number of iterations for the while loop, like so:

Iteration: 1
Iteration: 2
Iteration: 3
Iteration: 4
Iteration: 5
Iteration: 6
Iteration: 7
Iteration: 8
Iteration: 9
Iteration: 10

Conclusion

In this tutorial, you have learned how to count iterations in a Python while loop by using a counter variable.

This method can be useful in a variety of situations, such as when you need to perform a specific task a certain number of times or track the progress of a running loop.

By following these steps, you can easily implement this technique in your own Python projects.