Python Chapter 10

A list can be a dictionary key

false

You can use the ___ operator to determine whether a key exists in a dictionary

in

The ___ method returns all of a dictionary's kesy and their associated values as a sequence of tuples

items()

The ___ function returns the number of elements in a dictionary

len()

the following functoin returns the number of elements in a set

len()

This method removes an element and raises an exception if the element is not found.

remove

A tuple can be a dictionary key

true

The following statement creates an empty dictionary mydct = { }

true

sets store their elements in an unordered fashion

true

the following statement creates an empty set: myset = ()

true

the remove method raises an exception if the specified element is not found in the set

true

You can add a group of elements to a set with this method

update

you can use __ to create an empty dictionary

{}

this operator can be used to find the union of two sets

|

this operator can be used to find the intersection of two sets

&

Dictionaries are not sequences

True

The ___ dictionary method returns the value associated with a specified key. If the key is not found, it returns a default value

get()

the ___ method returns the value associated with a specified key, and removes that key value pair from the dictionary

pop()

the ___ method returns a randomly selected key-value pair from a dictionary

popitem()

this operator can be used to find the difference of two sets

-

The keys in a dictionary must be mutable objects.

False

this operator can be used to find the symmetric difference of two sets

^

You can add one element to a set with this method

add

You use ___ to delete an element from a dictionary

del

This set method removes an element but does not raise an exception if the element is not found

discard

the dictionary method popitem does not raise an exception if it is called on an empty dictionary

false

you can store duplicate items in a set

false