6. Mastering Python Loops

What is the syntax for a for loop in Python?

• for variable in sequence:

• for (variable : sequence)

• for each variable in sequence:

• for variable in sequence[]

How do you iterate over a list using a for loop?

• for item in my_list: print(item)

• for item in my_list: item.print()

• for item in range(len(my_list)): print(my_list[item])

• for item in my_list: print(item, end='')

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

• 0 1 2 3 4

• -1

• 10

• 5

Explain the difference between a for loop and a while loop.

• A for loop runs indefinitely, while a while loop stops after a set number of iterations.

• A for loop iterates a known number of times, while a while loop continues until a condition is false.

• A for loop is used for conditional statements, while a while loop is used for iteration.

• A for loop requires a condition to be true, while a while loop does not need any condition.

What is the syntax for a while loop in Python?

• do while condition:

• repeat until condition:

• for condition in iterable:

• while condition: # code to execute

How does a while loop terminate?

• When the loop condition becomes false.

• When the loop condition becomes true.

• When the loop is manually stopped by the user.

• When the loop runs for a set number of iterations.

What will be the output of the following code: count = 0; while count < 3: print(count); count += 1?

• 3

• -1

• 1.5

• 0 1 2

What is a nested loop in Python?

• A nested loop is a loop within another loop in Python.

• A loop that only executes once in Python.

• A loop that can only be used with lists in Python.

• A loop that runs indefinitely in Python.

Provide an example of a nested for loop.

• for i in range(3): for j in range(2): print(i, j)

• for i in range(5): print(i)

• for i in range(2): for j in range(3): print(j, i)

• for i in range(3): for j in range(2): print(i + j)

What is the purpose of the break statement in loops?

• The break statement continues to the next loop iteration.

• The break statement terminates the loop execution.

• The break statement pauses the loop execution.

• The break statement skips the current iteration of the loop.