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Here, the loop runs three times because our list has three items. It is not mandatory to use items of a sequence within a for loop.

Note: To learn more about the use of for loop with range, visit Python range(). The loop continues until we reach the last item in the sequence.įlowchart of Python for Loop Working of Python for loopĮxample: Loop Through a String for x in 'Python':Ī range is a series of values between two numeric intervals. Here, val accesses each item of sequence on each iteration. The syntax of a for loop is: for val in sequence: This way, the loop runs until the last element of the list is accessed. Language is updated with the next element of the list, and the print statement is executed again. Swift, so the print statement inside the loop is executed. Initially, the value of language is set to the first element of the array,i.e. In the above example, we have created a list called languages.

In Python, a for loop is used to iterate over sequences such as lists, tuples, string, etc. It's just a simple example you can achieve much more with loops. In computer programming, loops are used to repeat a block of code.įor example, if we want to show a message 100 times, then we can use a loop.