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In this tutorial, you'll learn about indefinite iteration using the Python while loop. You’ll be able to construct basic and complex while loops, interrupt loop execution with break and continue, use the else clause with a while loop, and deal with infinite loops.
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Python "while" Loops (Indefinite Iteration) A while loop repeats code until the condition is met. Unlike for loops, the number of iterations in it may be unknown. A while loop always consists of a condition and a block of code.
All while-loops work that way. They can be understood as "while this condition is true, execute this code block". Perhaps you were thinking of a do-while-loop, which runs a code block then evaluates the condition. However, Python doesn't have a do-while-loop. edited Jun 20, 2020 at 9:12.
18 sie 2023 · An infinite loop can be implemented using a for loop and the functions of the itertools module instead of using a while loop. Infinite loops with counters and similar use cases can often be written more easily using these functions.
13 lis 2020 · How to write a while loop in Python. What infinite loops are and how to interrupt them. What while True is used for and its general syntax. How to use a break statement to stop a while loop. You will learn how while loops work behind the scenes with examples, tables, and diagrams.
The while Loop. With the while loop we can execute a set of statements as long as a condition is true.
12 sie 2023 · The general syntax for a Python while loop statement is: while test_expression/condition: statement body. The statement body can either be a single statement or a set or block of statements, while the condition may or may not be an expression. In the Python while loop, the test expression is evaluated at the start.
