What happens when the iterator runs out of values? Commenting Tips: The most useful comments are those written with the goal of learning from or helping out other students. What Is the Difference Between 'Man' And 'Son of Man' in Num 23:19? Each iterator maintains its own internal state, independent of the other. About an argument in Famine, Affluence and Morality, Styling contours by colour and by line thickness in QGIS. Not to mention that isolating the body of the loop into a separate function/method forces you to concentrate on the algorithm, its input requirements, and results. If you find yourself either (1) not including the step portion of the for or (2) specifying something like true as the guard condition, then you should not be using a for loop! count = 1 # condition: Run loop till count is less than 3 while count < 3: print(count) count = count + 1 Run In simple words, The while loop enables the Python program to repeat a set of operations while a particular condition is true. In zero-based indexing languages, such as Java or C# people are accustomed to variations on the index < count condition. A minor speed increase when using ints, but the increase could be larger if you're incrementing your own classes. Syntax: FOR COUNTER IN SEQUENCE: STATEMENT (S) Block Diagram: Fig: Flowchart of for loop. I don't think that's a terribly good reason. You can also have an else without the for some reason have an if statement with no content, put in the pass statement to avoid getting an error. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. You saw in the previous tutorial in this introductory series how execution of a while loop can be interrupted with break and continue statements and modified with an else clause. Tuples as return values [Loops and Tuples] A function may return more than one value by wrapping them in a tuple. This type of loop iterates over a collection of objects, rather than specifying numeric values or conditions: Each time through the loop, the variable i takes on the value of the next object in
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