D335 Introduction to Programming in Python - Set 2 - Part 1

Correct Answer: my_list = [1, 2, 3]

A list in Python is created using square brackets, like [1, 2, 3].

Correct Answer: Removes the last element from the list

The pop() method removes and returns the last element from a list.

Correct Answer: Keys in dictionaries must be unique

In a dictionary, keys must be unique, but values do not have to be.

Correct Answer: 4

The len() function returns the number of elements in the list, which is 4 in this case.

Correct Answer: An immutable ordered collection

A tuple is an immutable sequence of values that cannot be changed once defined.

Correct Answer: if key in dict:

The in keyword checks whether a key exists in a dictionary.

Correct Answer: 2

The modulus operator % returns the remainder when dividing 5 by 3, which is 2.

Correct Answer: dict = {}

An empty dictionary is created using curly braces {}.

Correct Answer: abcabcabc

The * operator repeats the string 'abc' three times, resulting in 'abcabcabc'.

Correct Answer: my_set = {1, 2, 3}

A set in Python is created using curly braces, like {1, 2, 3}.

Correct Answer: To check if two variables point to the same object

The is operator checks whether two variables point to the same object in memory.

Correct Answer: set.remove()

The remove() method removes a specified element from a set.

Correct Answer: To return a sequence of numbers

The range() function generates a sequence of numbers, which is often used in loops.

Correct Answer: random.randrange()

The random module provides functions such as randrange() to generate random numbers.

Correct Answer: dict[key]

You can access the value associated with a key using the dict[key] syntax.

Correct Answer: split()

The split() method breaks a string into a list based on a delimiter.

Correct Answer: float()

The float() function converts a string or integer to a floating-point number.

Correct Answer: None

A function that does not specify a return value returns None by default.

Correct Answer: if len(list) == 0

The len() function returns the length of the list, and if it is 0, the list is empty.

Correct Answer: Lists are mutable, tuples are immutable

Lists can be modified, while tuples cannot be changed once created.