Using If-Else Statements and For Loops with Lists in Python

Play an AI-generated podcast conversation about this lesson

What is the result of x[::2] when applying slicing with a step of 2 to the list x = ['Ahmed', 'Alex', 'Luic', 'Kenza', 'Taha']?

['Ahmed', 'Kenza']

['Alex', 'Kenza']

['Ahmed', 'Luic'] (correct)

['Ahmed', 'Taha']

If you want to access the last two elements of the list x=['Ahmed', 'Alex', 'Luic', 'Kenza', 'Taha'] using slicing, which of the following correctly represents this?

x[-2:] (correct)

x[:-2]

x[3:]

x[-3:]

In the nested list scenario given, what does account[-1][2:] represent?

The third and fourth elements of the list followers

The last element of list account

The second element of the list followers

The third to last elements of the list followers (correct)

To obtain the number of elements in a list, which function should be used?

len() Signup and view all the answers

Which method is used to add an item at a specified index in a list?

insert() Signup and view all the answers

What is the purpose of the pop() method in Python lists?

To remove an item at a given index and return it Signup and view all the answers

What will be the output of the code snippet 'population_2 = population[:2]'?

['4M', '2M'] Signup and view all the answers

In Python, what is a key difference between tuples and lists?

Tuples are immutable while lists are mutable. Signup and view all the answers

What does the 'enumerate()' method do when used with a list in Python?

Returns an iterator of tuples containing the index and item. Signup and view all the answers

How would you define tuple comprehension in Python?

Generating a sequence of tuples based on certain conditions. Signup and view all the answers

What is the primary implication of tuples being immutable in Python?

Elements in tuples cannot be changed after creation. Signup and view all the answers

How does Python handle iteration when using 'zip()' with lists of unequal lengths?

It automatically truncates both lists to the length of the shorter list. Signup and view all the answers

What is the correct syntax to create a comprehension tuple in Python?

tuple(expression for variable in sequence) Signup and view all the answers

Which data structure in Python represents a collection of unique elements?

Set Signup and view all the answers

What will be the output when searching for the element 45653 in a tuple 't' using 'in' operator?

found Signup and view all the answers

Which object was created using list comprehension in the provided Python code snippet?

'l' Signup and view all the answers

How do you create a list in Python using comprehension?

[expression for variable in sequence] Signup and view all the answers

What is the difference in execution time between searching for an element in a list 'l' vs. a tuple 't'?

Searching is slower in list 'l' than tuple 't' Signup and view all the answers