WEBVTT

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Hi everyone, in this video we are going to learn about the for loop, so the for loop can

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be used to iterate any sequence like string, list, tuple, etc.

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This index is the keyword for followed by the iterating variable, followed by the keyword

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in, followed by the sequence name, and finally a colon.

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The sequence can be a string, or a list, or a tuple, or a dictionary, etc.

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And below, we can write the statements properly intended.

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So first, let us see the case of a string, so how do we iterate a string using the for loop?

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We have four iterating variable, char, in string python and a colon.

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And the statement inside is print char.

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So for each character in the string, it will be printed.

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That is, in each iteration, a character is stored in variable char and is printed.

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So first, p will be printed, then y will be printed, then t, then h, and then o.

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And finally, n is printed.

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So we iterated a string here.

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Now let us see the case of a list.

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We have a list here with items 10, 20 and 30.

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We use a for loop to iterate it.

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So write.

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For the variable x, in list, which is the name of the list here and a colon.

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And next, we have the statement print x.

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So in each iteration, the item is taken in variable x and is printed.

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So in first iteration, 10 is printed.

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Next 20 is printed and finally 30 printed.

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So that's all.

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So we learned about the for loop.

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And it is used for traversing a sequence.

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In the next video, we will discuss about the range function in Python.