Python Loops - For Loops, Range Function & While Loops

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Questions and Answers

What type of control flow statement is a For Loop in Python?

  • Iterative statement (correct)
  • Conditional statement
  • Sequence statement
  • Jump statement

What is the purpose of the Range function in Python?

  • To return a sequence of numbers (correct)
  • To repeat a block of code until a condition becomes false
  • To iterate over a sequence of lists
  • To iterate over a sequence of strings

What is the main difference between a While Loop and a For Loop in Python?

  • A While Loop iterates over a range of numbers, while a For Loop iterates over a sequence
  • A While Loop repeats until a condition becomes false, while a For Loop iterates over a sequence (correct)
  • A While Loop iterates over a sequence, while a For Loop repeats until a condition becomes false
  • A While Loop iterates over a sequence, while a For Loop iterates over a range of numbers

What is the syntax for a For Loop in Python that iterates over a sequence?

<p>for item in iterable; (B)</p> Signup and view all the answers

What is the output of the following Python code: for i in range(5): print(i)

<p>0, 1, 2, 3, 4 (C)</p> Signup and view all the answers

A While Loop in Python will repeat until a given condition becomes evaluated as true.

<p>False (B)</p> Signup and view all the answers

The Range function in Python returns a sequence of characters.

<p>False (B)</p> Signup and view all the answers

For Loops in Python are used to iterate over a single value.

<p>False (B)</p> Signup and view all the answers

The syntax for a For Loop in Python is 'for iterable in item'.

<p>False (B)</p> Signup and view all the answers

The Range function in Python is used to iterate over a list of strings.

<p>False (B)</p> Signup and view all the answers

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Study Notes

Loops in Python

  • For Loops: A control flow statement that iterates over a sequence (like lists or strings) or other iterable objects, with a basic syntax of for item in iterable: # do something with item.
  • Range Function: A built-in function that returns a sequence of numbers, commonly used with loops, e.g. for i in range(5): # 0 to 4 prints numbers from 0 to 4.
  • Range Function Example: range(5) generates a sequence of numbers from 0 to 4.
  • While Loops: Blocks of code that repeat until a given condition becomes evaluated as false.
  • While Loop Example: I = 0; While (I ...) demonstrates the basic structure of a while loop, where the code within the loop will continue to execute until the condition I becomes false.

Loops in Python

  • For Loops: A control flow statement that iterates over a sequence (like lists or strings) or other iterable objects, with a basic syntax of for item in iterable: # do something with item.
  • Range Function: A built-in function that returns a sequence of numbers, commonly used with loops, e.g. for i in range(5): # 0 to 4 prints numbers from 0 to 4.
  • Range Function Example: range(5) generates a sequence of numbers from 0 to 4.
  • While Loops: Blocks of code that repeat until a given condition becomes evaluated as false.
  • While Loop Example: I = 0; While (I ...) demonstrates the basic structure of a while loop, where the code within the loop will continue to execute until the condition I becomes false.

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