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Now if you have worked with observations such as weather observations, for example temperatures you might

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have noticed that you have these kinds of values sometimes in those data which means there was no value,

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no valid value detected for that observation.

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And organizations use that special value to mean no data.

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So if we wanted to use a list comprehension where we divide by 10 all these values, we want to be careful

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not to divide this value by 10.

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We want to ignore that.

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For that we need an if conditional inside the list comprehension.

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We can do it like that.

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So create a new variable where you will store the new list.

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And again let's say temp divided by 10 for temp in temps if temp is different for example then

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minus 9999.

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Print new temps executes on the terminal and we get the expected result.

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So this is just like the simple loop that we saw in the previous video with the addition of the if conditional.

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So that is the conditional.

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We are checking if temp is different than minus 9999.