Typically, the while loop is used when it is impossible to determine the exact number of loop iterations in advance.. Now we see various examples on how to implement different functions using get_event_loop. Here, we take the remainder of the number by dividing it by 10 then change the number to the number with removing the digit present at the unit place. In programming, Loops are used to repeat a block of code until a specific condition is met. In this example, instead of 100 we take a input value from user and print even numbers between 1 to n (where n is input by user). You can also use the while loop to calculate the sum and average of n numbers. the number of rows and columns in the pattern.Outer loop tells us the number of rows used and the inner loop tells us the column used to print pattern. There are two possibilities: Use 10 print statements to print the even numbers. There are some important functions that we need to know while implementing get_event_loop. Logic. The while loop in Python is used to iterate over a block of code as long as the test expression (condition) is true. I shall show you some examples that you can practice for yourself to know more. C program to print all natural numbers between 1 to n. C program to print all alphabets from a to z. While Loop. Single print statement inside a loop that runs for 10 iterations. C++ Program to Print Even numbers between 1 to N In above examples, we have written a code to print even numbers between 1 to 100 using for and while loop. How to print even numbers in Java using while loop. How does Event loop work in Python? A number is even if it is perfectly divisible by 2. While loop. In this tutorial, you'll learn about indefinite iteration using the Python while loop. Now let's write some code. This is pretty simple so head down to the sample code: How to print even numbers in Java using while loop . Today we will use a while loop to calculate prime numbers! But how can we find these numbers? 2 is even. 3 is odd. Syntax Of While Loop In Python. Use the while loop with the syntax as given below. The syntax of a while loop in Python programming language is −. Create a Python program to print numbers from 1 to 10 using a for loop. The condition is evaluated, and if the condition is true, the code within the block is executed. Syntax of while Loop in Python while test_expression: Body of while. Here we will be discussing three approaches for the given problem statement. We repeat this process in the while loop. Example: Input: start = 4, end = 15 Output: 4, 6, 8, 10, 12, 14 Input: start = 8, end = 11 Output: 8, 10 Example #1: Print all even numbers from given list using for loop Define start and end limit of range. while loop repeats the sequence of actions many times until some condition evaluates to False.The condition is given before the loop body and is checked before each execution of the loop body. Natural numbers are numbers that are common and clearly in nature. If you initialise x as 20, the loop will never execute. In this example, we will write a Python program to print the following start pattern to console. Given starting and end points, write a Python program to print all even numbers in that given range. A while loop statement in Python programming language repeatedly executes a target statement as long as a given condition is true.. Syntax. So Python developers don't have to search for prime numbers starting from integer 1 everytime. Here's how you write a simple while loop to print numbers from 1 to 10. Let’s create a small program that executes a while loop. When the number is divided by 2, we use the remainder operator % to compute the remainder. Python for loop examples. In this case, our list will be: 3,5,7,9. Here, the third argument considers the range from 3-10 while incrementing numbers by 2. Consider a scenario, where you have to print the numbers from 1 to 10. Example – Python Program to Print Right Triangle using While Loop. Given a range (value of N) and we have to print all EVEN numbers from 1 to N using while loop. 4 is even. Enter lower limit: 40 Enter upper limit: 50 All even numbers from 40 to 50 are: 40 42 44 46 48 50. example.py . In Python, for loop is used to print the various patterns. Python While Loops Previous Next Python Loops. 5 is odd. Example. n += 1 [/code](using Python 2.7 console) Here is the output: 1 is odd.