In other languages (think: Java) this would be nearly impossible, but in Python, it's a lot easier to do. You may ask: why should I care? The answer is profound: if you cannot read and write one-liner code snippets, how can you ever hope to read and write more complicated codebases? Python one-liners can be just as powerful as a long and tedious program written in another language designed to do the same thing. This False might be at first or any other number of iteration.This page is devoted to short programs that can perform powerful operations called Python One-Liners. The code in the else part is executed when the condition in the while gives False.

In this case, else executes when the condition in the if statement is False.Įlse is used for a similar purpose along with the while loop. We would have seen the else being used along with if statement. There are cases where the infinite loop might be useful like when we need a semaphore or for the server/client programming. What if we get to this case where we fall into an infinite loop? Then we can stop the execution manually by pressing Ctrl+C. So we continuously get the values 1,2,3….and so on. Then as the initial value is 1 and we are incrementing it. The syntax of the while loop is : while condition:Īn example of printing numbers from 1 to 5 is shown below. Once the condition results in False, it stops execution, and the part of the program after the loop starts executing. While loops execute a set of lines of code iteratively till a condition is satisfied. Now let us discuss each of the loop types in the following sections. And update the iterator/ the value on which the condition is checked.

If True, execute the body of the block under it. Both of them work by following the below steps:Ģ. There are two types of loops in Python and these are for and while loops. These are useful in many situations like going through every element of a list, doing an operation on a range of values, etc. In programming, the loops are the constructs that repeatedly execute a piece of code based on the conditions. In this article, we will learn different types of loops in Python and discuss each of them in detail with examples. Loops in the programming context have a similar meaning. Generally, a loop is something that coils around itself.

One line for loop python