Then, I will ask the user to input the required secret keyword they are supposed to know to access the rest of the content. Now, let’s write the example I mentioned earlier using a Python while loop.įirst, I will store the secret keyword Python in a variable named secret_keyword. What Is An Example of A while Loop in Python?
#CEEBOT WHILE LOOP CODE#
The code inside the body will continue to execute until the condition is no longer met and evaluates to False. While the condition evaluates to True, the code inside the body of the while loop will execute.Then, the code you want to run goes in the body of the while statement.
This level of indentation is how Python knows that the code statements you will write are associated with the while statement. For example, when using the Visual Studio Code editor with the Python extension, right after you write the colon from the previous step and hit Enter, it will automatically indent your code with the right level of indentation. Many code editors will do this automatically for you. On a new line, you add a level of indentation.
A Boolean expression is an expression that evaluates to either True or False.
#CEEBOT WHILE LOOP HOW TO#
How To Write A while Loop in Python - A Syntax Breakdown for Beginners To do something similar to this example, you would need to make use of Python's while loop. When they finally enter the keyword ‘Python’ you will allow them to view that content, you will stop prompting them, and that block of code will stop executing. And for as long as they enter the wrong keyword, you will not allow them to continue. That said, you don’t know how many times the user will enter the wrong keyword.Įach time they enter the wrong one, you continue to prompt them for the correct keyword. To do this, you would ask them to enter that keyword. Say that for them to be able to view some content, they first have to enter the keyword ‘Python’. You may ask a user to submit a secret keyword so they can access a specific part of your site. It will keep executing the desired set of code statements until that condition is no longer True.
If the condition evaluates to True, then the loop will run the code within the loop's body and continue to run the code while the condition remains True. So, a while loop is useful when you don’t know how many times you want a block of code to execute beforehand.Ī while loop repeats the block of code based on a given Boolean condition.Ī Boolean condition is a condition that evaluates to either True or False.Ī while loop will always first check the condition before running. for loops, on the other hand, repeat a block of code a fixed number of times. What is A while Loop in Python? A Definition for BeginnersĪ while loop repeats a block of code an unknown number of times until a condition is no longer met. In this article, you will learn how to construct while loops. There are two types of loops built into Python: So, all in all, loops save you from writing the same code over and over again. Loops in computer programming repeat the same block of code or the same sequence of instructions multiple times until a condition is met or until a condition is no longer met. Loops are helpful when you want to automate a specific repetitive task or prevent yourself from copying and pasting the same code in your program. Loops are a helpful and frequently used feature in all modern programming languages. Python has many tools and features that can help you automate repetitive tasks.
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