ch9 python coding Qs
After the following code executes, what elements will be members of set3? set1 = set(['d', 'e', 'f']) set2 = set(['a', 'b', 'c', 'd', 'e']) set3 = set2.difference(set1)
{'c', 'a', 'b'}
After the following code executes, what elements will be members of set3? set1 = set([1, 2, 3]) set2 = set([2, 3, 4]) set3 = set1.symmetric_difference(set2)
{1, 4}
What will the following code display? dct = {'Monday':1, 'Tuesday':2, 'Wednesday':3} print(dct.get('Monday', 'Not found'))
1
What values will the following code display? (Don't worry about the order in which they will be displayed.) dct = {1:[0, 1], 2:[2, 3], 3:[4, 5]} for k in dct: print(k) ***
1 2 3 might be wrong
Look at the following code: set1 = set([100, 200, 300, 400, 500]) set2 = set([200, 400, 500]) Which of the sets is a subset of the other? Which of the sets is a superset of the other?
set1 is a superset set2 is a subset
What will the following code display? dct = {'Monday':1, 'Tuesday':2, 'Wednesday':3} print(dct['Tuesday'])
2
After the following statement executes, what elements will be stored in the myset set? myset = set([2, 4, 4, 6, 6, 6, 6])
2, 4, 6
What will the following code display? stuff = {'aaa' : 111, 'bbb' : 222, 'ccc' : 333} print(stuff['bbb'])
222
After the following statement executes, what elements will be stored in the myset set? myset = set('Saturn')
'S','a','t','u','r','n'
After the following statement executes, what elements will be stored in the myset set? myset = set('a bb ccc dddd')
'b', 'd', 'c', ' ', 'a'
After the following statement executes, what elements will be stored in the myset set? myset = set(['a', 'bb', 'ccc', 'dddd'])
'dddd', 'a', 'ccc', 'bb'
What will the following code display? myset = set('1 2 3') print(len(myset))
4
After the following code executes, what elements will be members of set3? set1 = set([10, 20, 30, 40]) set2 = set([40, 50, 60]) set3 = set1.union(set2)
50, 20, 40, 10, 60, 30
After the following statement executes, what elements will be stored in the myset set? myset = set(10)
TypeError: 'int' object is not iterable
What will the following code display? dct = {1:[0, 1], 2:[2, 3], 3:[4, 5]} print(dct[3])
[4,5]
What will the following code display? dct = {'Monday':1, 'Tuesday':2, 'Wednesday':3} print(dct.get('Friday', 'Not found'))
not found