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Data Science Interview Handbook

Loops

Explore the concepts of Python loops in this lesson. Understand definite and indefinite iterations, master the syntax of for and while loops, and learn how to control loop execution using break and continue statements. This lesson helps you write efficient, readable code essential for data science tasks.

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In a programming language, we sometimes need to execute statements x number of times. We don’t want to write the same programming statement x times, as doing so would make the code unreadable. Also, if we want to change something, we would have to change each block of code. That’s why looping is necessary.

Definite and indefinite iterations

Iteration can be definite or indefinite. Definite iterations are repeated a specific number of times, while indefinite iterations are repeated until a condition ...