Python quiz questions

Which of the following is the output of the following code?

class A:
    def __init__(self, i = 2, j = 3):
        self.i = i
        self.j = j
    def __str__(self):
        return"A"
    def __eq__(self, other):
        return self.i * self.j == other.i * other.j
def main():
    x = A(1, 2)
    y = A(2, 1)
    print(x == y)
main()

1. False

2. 2

3. True

4. 1

5. None

Analyze the following code fragments that assign a boolean value to the variable even?

number = 202
#Code1 
if number % 2 == 0:
    even = True
else: 
    even = False
print ("Code1: even := {}".format(even))
#Code2
even = True if number % 2 == 0 else False
print ("Code2: even := {}".format(even))
#Code3
even = number % 2 == 0
print ("Code3: even := {}".format(even))

1. Code3 has a syntax error because you attempt to assign a number to 'even'.

2. Code2 has a syntax error because you cannot have True and False literals in the conditional expression.

3. All three are correct, but Code1 is preferred.

4. All three are correct, but Code3 is preferred.

5. All three are correct, but Code2 is preferred.

What is the value of x after the following statements?

x = 2
y = 1
x *= y + 1
print(x)

1. x is 2.

2. x is 1.

3. x is 3.

4. x is 4.

5. None

Which of the following is the output of the below Python code fragment?

class A:
    def __init__(self):
        self.i = 1
    def m(self):
        self.i = 10
class B(A):
    def m(self):
        self.i += 1
        return self.i
def main():
    b = B()
    print(b.m())
main()

1. 10

2. i is not accessible from b.

3. 2

4. 1

Which is the output of the following Python code fragment?

x = True
y=False
z= False
if not x or y:
      print (1)
elif not x or not y and z:
      print (2)
elif not x or y or not y and x:
      print (3)
else:
      print (4)

1. 2

2. None

3. 1

4. 3

5. 4

Which of the following is the output of the below Python code?

class parent:
    def __init__(self, param):
        self.v1 = param
class child(parent):
    def __init__(self, param):
        self.v2 = param
obj = child(11)
print ("%d %d" % (obj.v1, obj.v2))

1. 11 None

2. None None

3. 11 11

4. AttributeError: 'child' object has no attribute 'v1'

5. None 11

Which of the following is the output of the below Python code?

list1 = [1, 3]
list2 = list1
list1[0] = 4
print(list2)

1. [4, 3]

2. [1, 3]

3. [1, 4]

4. [1, 3, 4]

What is the output when following statement is executed?

print (R'Tech\nBeamers')

1. 'RTech' then 'Beamers' in a New line

2. 'Tech' then 'Beamers' in a New line

3. Tech\nBeamers

4. Tech Beamers

What is the output when following statement is executed?

print ('Tech' + 'Beamers')

1. Beamers

2. Tech

3. TechBeamers

4. Tech Beamers

Which of the following is the output of the below Python code?

str='Tech Beamers'
str[4]='-'
print (str)

1. Tech Beamers

2. Tech-Beamers

3. TypeError

4. Tec- Beamers

Which of the following is the output of the below Python code?

str='Hello World'
print  (str.replace('l','n',2))

1. Henno Wornd

2. Hello World

3. Helno World

4. Henno World

Which of the following is the output of the below Python code?

str='Tech Beamers'
print (str[4:9])

1. Beamer

2. Beam

3. Beamers

4. Beame

Which of the following is the output of the below Python code?

str='example'
print  (str.center(2,'*'))

1. m

2. example

3. Error will be generated

4. *example*

What is the output when following statement is executed?

print ('Tech'  'Beamers')

1. Tech Beamers

2. TechBeamers

3. Tech

4. Beamers

Which of the following is the output of the below Python code?

class  Assign:
    def __init__(self, value= 0):
       self.__value =value
obj1 = Assign(2)
obj2 = Assign(2)
print(id(obj1) == id(obj2))
str1='Good'
str2='Good'
print(id(str1) == id(str2))

1. True
   True

2. False
   False

3. True
   False

4. False
   True

Which of the following is the output of the below Python code?

str='Hello World'
print (str.find('o'))

1. 7

2. 2

3. 4

4. 4, 7

What is the output when following code will be executed?

str='Recurssion'
print  (str.rfind('s'))

1. 5

2. 2

3. 6

4. 4

Which of the following statements can be used to return the length of the given String, str?

1. str._len_()

2. len(str)

3. size(str)

4. str.size()

Which of the following operators can be used with Strings?

a) +
b) *
c) -
d) in

1. a, b, c, d

2. a, b

3. a, b, d

4. a, b, c

Which of the following is the output of the below Python code?

str='Tech Beamers'
print (str[::-1])

1. Tech

2. Tech Beamers

3. sremaeB hceT

4. Beamers