![]() If the check fails, then the control won’t enter into the loop instead will get transferred to the next statement. The syntax is clearly stating that Python first evaluates the condition. Python While Loop – Syntax while some condition (or expression) : Some technical references call it a pre-test loop as it checks the condition before every iteration. For example, say, you want to count the occurrence of odd numbers in a range. of times until the given condition becomes false. For example, a program asking for user input indefinite number of times until he presses ESC key or reading a file until it finds a specific token.Ī while loop is a control flow structure which repeatedly executes a block of code indefinite no. While coding, there could be scenarios where you don’t know the cut-off point of a loop. of iterations, the while loop relies on a condition to complete the execution. ![]() ![]() Unlike the for loop which runs up to a certain no.
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