The simplest possible class definition in Python can be expressed as
Anonymous Quiz
17%
class X: return
18%
class X: { }
33%
class X:
32%
class X: pass
Python strings have a property called “immutability.” What does this mean?
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10%
Strings in Python can be represented as arrays of chars
69%
Strings in Python can’t be changed
12%
Strings can’t be divided by numbers
10%
You can update a string in Python with concatenation
Which of the following will run without errors?
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55%
round(45.8)
10%
round(6352.898,2,5)
30%
round()
5%
round(7463.123,2,1)
Code snippet:
def example(a):
a = a + '2'
a = a*2
return a
print(example("hello"))
What will be the output of the code snippet above?
Anonymous Quiz
28%
cannot perform mathematical operation on strings
12%
hello2
5%
hello4
54%
hello2hello2
What is the output of the code snippet above?
Anonymous Quiz
4%
0
22%
2.0
38%
2
7%
x
29%
SyntaxError
Code snippet:
from numbers import Number
from decimal import Decimal
from fractions import Fraction
print(isinstance(2.0, Number), end = ' ')
print(isinstance(Decimal('2.0'), Number), end = ' ')
print(isinstance(Fraction(2, 1), Number), end = ' ')
print(isinstance("2", Number), end = ' ')
What is the output of the code snippet above?
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11%
True False True True
18%
True True True True
26%
True False True False
25%
True True True False
11%
False False False False
9%
False True False True
🔥2
What will be the output of the Python code above?
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31%
[‘ab’, ‘cd’]
61%
[‘AB’, ‘CD’]
5%
[None, None]
4%
none of the mentioned
What happens if a class does not implement __str__()?
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24%
Instances of that class will use __repr__() method of the class
29%
Instances of that class will output the name of the class when printed
26%
Instances of that class cannot be printed
21%
Instances of that class will output the dictionary with all instance attributes when printed
👍2
Code snippet:
from functools import reduce
numbers = [1, 2, 3]
reduce(lambda x, y: x + y, numbers)
Which of the following is the same as list(map(lambda x: x**-1, [1, 2, 3]))?
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39%
[x**-1 for x in [(1, 2, 3)]]
22%
[1/x for x in [(1, 2, 3)]]
18%
[1/x for x in (1, 2, 3)]
21%
error
Which of the following lines of code will not show a match?
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26%
>>> re.match(‘ab*’, ‘a’)
20%
>>> re.match(‘ab*’, ‘ab’)
23%
>>> re.match(‘ab*’, ‘abb’)
31%
>>> re.match(‘ab*’, ‘ba’)
😐1