How to Apply Conditional Logic within List Comprehensions?

Implementing Conditional Logic in List Comprehensions

Question:

Given a list of numbers, how can we modify each element based on a conditional check using a list comprehension? Specifically, we want to increment numbers greater than or equal to 45 by 1, and increment smaller numbers by 5.

Answer:

To perform this conditional logic in a list comprehension, we can use the following syntax:

<code class="python">[expression_if_true if condition else expression_if_false for element in iterable]</code>

In this context, the condition is whether the element is greater than or equal to 45. The expression_if_true is x 1 (incrementing the number by 1), and the expression_if_false is x 5 (incrementing the number by 5).

Example:

<code class="python">>>> l = [22, 13, 45, 50, 98, 69, 43, 44, 1]
>>> [x+1 if x >= 45 else x+5 for x in l]
[27, 18, 46, 51, 99, 70, 48, 49, 6]</code>

By employing this syntax, we achieve the desired conditional logic, incrementing numbers above 45 by 1 and smaller numbers by 5.

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