Problem Wk.5.1.1: More expressions
For each of the expressions below, specify its type and value. If it generates an error,
select type noneType and put the word error in the box for the value. Assume we've
made the following assignments:
> a = 'hi'
> x = [1,2,[3,'John',4],'Hi']
1. a
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
noneType
int
float
boolean
function
string
list
tuple
a[0]
a[1]
a[2]
x[0]
x[2]
x[-1]
x[2][2]
x[2][-1]
x[-1][2]
x[0:1]
x[0:-1]
len(x)
(a, b, c, d) = x
c
range(3)
range(3,10)
range(3,10,3)
range(10,3)
range(10,3,-1)
range(len(x))
'hi' == 'Hi'
2 in x
3 in x
'John' in x
'Hi' in x
sum(range(4))
[x for x in range(3)]
[x*2 for x in range(3)]
sum([x*2 for x in range(3)])
[-x for x in [8, 2, 1]]
def fizz(x): return x + 1
This problem contains one or more multiple-choice questions. When a given set of choices is used for the first time, all choices are displayed.
If there are several related questions, you can assume that the same choices are available for all questions.
[fizz(fizz(x)) for x in [8, 2, 1]]
32. [x for x in range(10) if x%2 == 0]
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6.01SC Introduction to Electrical Engineering and Computer Science
Spring 2011
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