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Loops – for and while
Loops are fundamental constructs in programming that allow for the execution of a block of code multiple times based on certain conditions. This chapter covers two primary types of loops in Python: 'for' loops, which iterate over sequences, and 'while' loops, which continue until a specified condition becomes false. Additionally, control statements like break, continue, and pass are discussed to manage loop behavior more effectively.
Sections
This section explores loops in Python, focusing on 'for' and 'while' loops, their syntax, and how to efficiently execute repetitive tasks.
Loops enable code execution multiple times based on conditions.
For loops are used for iterating over sequences.
While loops repeat code block execution while a condition is true.
Control statements break, continue, and pass manage loop execution.
Nested loops allow for complex iteration scenarios.
Loop
A programming construct that repeats a segment of code multiple times.
For Loop
A loop that iterates over a sequence like lists, strings, or ranges.
While Loop
A loop that continues execution as long as a specified condition evaluates to true.
Break
A control statement that exits a loop immediately.
Continue
A control statement that skips the current iteration and continues with the next.
Pass
A placeholder statement indicating that nothing happens; often used as a temporary measure.
Nested Loop
A loop that exists inside another loop, allowing for multi-level iteration.
Practice Exercises
Total Questions
3
Estimated Time
6 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting