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4 sie 2017 · Is it possible to use a while loop to keep asking for an input value if the value supplied is not 'yes' or 'no'? e.g. someVar = None. while someVar is not (True or False): someVar = str.lower(input()) if someVar == 'yes': someVar = True. elif someVar== 'no': someVar = False. python.
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.
13 lis 2020 · While loops are programming structures used to repeat a sequence of statements while a condition is True. They stop when the condition evaluates to False. When you write a while loop, you need to make the necessary updates in your code to make sure that the loop will eventually stop.
The general form of a while loop in Python is below: while <logical_condition>: <code>. The keyword while must be included, as well as a <logical_condition> which can be evaluated as True or False. The <code> after the while statement must be indented.
25 cze 2021 · In simple words, The while loop enables the Python program to repeat a set of operations while a particular condition is true. When the condition becomes false, execution comes out of the loop immediately, and the first statement after the while loop is executed.
27 cze 2024 · We start with the keyword while, followed by some sort of a <boolean expression> that will evaluate to either True or False. The Boolean expression in Python does not need to be placed inside of parentheses.
19 lip 2022 · A while loop repeats the block of code based on a given Boolean condition. A Boolean condition is a condition that evaluates to either True or False. A while loop will always first check the condition before running. 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 ...
