Python MCQ
Python MCQ Questions & Answers
What is the output:
class Student:
def __init__(self):
print(“”Sikander”” , end = “” “”)
obj1 = Student()
obj2 = obj1
- Sikander
- Sikander Sikander
- No Output
- Error
View Answer
Sikander
How many instance members are there in Student class
class Student:
regno = 1
name = “”Sikander””
marks = 98
obj1 = Student()
- 3
- 2
- 0
- 1
View Answer
0
How many instance members are there in Student class
class Student:
regno = 1
name = “”Sikander””
marks = 98
obj1 = Student()
- 3
- 2
- 0
- 1
View Answer
0
How does defaultdict work?
- defaultdict will automatically create a dictionary for you that has keys which are the integers 0-10.
- If you try to access a key in a diction that doesn’t exist, defaultdict will create a new key for you instead of throwing a KeyError.
- defaultdict forces a dictionary to only accept keys that are the data type specified when you created the defaultdict.
- defaultdict stores a copy of a dictionary in memory that you can default to if the original gets unintentionally modified.
View Answer
If you try to access a key in a diction that doesn't exist, defaultdict will create a new key for you instead of throwing a KeyError.
Which statement about static methods is true?
- Static methods serve mostly as utility or helper methods, since they cannot access or modify a class’s state.
- Static methods can be bound to either a class or an instance of a class
- Static methods can access and modify the state of a class or an instance of a class.
- Static methods are called static because they always return None.
View Answer
Static methods serve mostly as utility or helper methods, since they cannot access or modify a class's state.
What does calling namedtuple on a collection type return?
- a tuple subclass with iterable named fields.
- a tuple subclass with non-iterable parameter fields.
- a generic object class with iterable parameter fields.
- a generic object class with non-iterable named fields
View Answer
a tuple subclass with iterable named fields.
According to PEP 8 coding style guidelines, how should constant values be named in Python?
- in lowercase with underscores to seperate words – eg., max_value = 255
- in all caps with underscores seperating words – eg., MAX_VALUE = 255
- in mixed case without using underscores to seperate words – e.g., MaxValue = 255
- in camel case without underscores to seperate words – eg., maxValue = 255
View Answer
in all caps with underscores seperating words - eg., MAX_VALUE = 255
Describe the functionality of a deque.
- A deque adds items at either or both ends, and remove items at either or both ends.
- A deque adds items only to the top, but remove items from either or both sides.
- A deque adds items to one side and remove items from the other side.
- A deque adds items to either or both sides, but only removes items from the top.
View Answer
A deque adds items only to the top, but remove items from either or both sides.
What is the correct syntax for calling an instance method on a class named Game?
- my_game = Game()self.my_game.roll_dice()
- my_game = Game(self)
self.my_game.roll_dice() - my_game = Game(self) my_game.roll_dice(self)
- my_game = Game()my_game.roll_dice()
View Answer
my_game = Game() my_game.roll_dice()
Which statement about class methods is true?
- A class method holds all of the data for a particular class.
- A class method is similar to a regular function, but a class method does not take any arguments.
- A class method is regular function that belongs to a class, but it must return None.
- A class method can modify the state of the class, but it cannot directly modify the state of an instance that inherits from that class.
View Answer
my_game = Game() my_game.roll_dice()
Complete the code to return the output
fun = lambda _____ x + 2
print(fun(2))
print(fun(-5))
4
-3
- x:
- x =
- x
- (x)
View Answer
x:
Complete the code to return the output
[’10 strawberries’, ‘2 apples’]
import re
recipe = “”I need 10 strawberries and 2 apples.””
print(re ____(“”\d+ [a-z]+””, recipe))
- findall
- finditer
- find
- search
View Answer
findall
import re
print( len ( re.findall(“”[a-r]”” , “”varsity””) ) )
- 2
- 3
- 18
- 17
View Answer
3
import re
sequence = “”india is my country””
res = re.findall(“”abc”” , sequence)
print(res)
Options:
- [‘a’,’c’]
- [‘a is my c’]
- []
- None of the above
View Answer
[]
import re
sequence = “”sikander””
res = re.findall(“”[^abcde]”” , sequence)
print(res)
- [‘s’, ‘i’, ‘k’, ‘n’, ‘r’]
- [‘d’,’e’]
- []
- None of the above
View Answer
['s', 'i', 'k', 'n', 'r']
address = [“”82″” , “”3rd floor”” , “”presidency building”” ,””st marks rd””, “”560001″”]
for word in address:
res = re.match(“”[^0-9]””, word)
if res != None:
print(word)
- “82” , “3rd floor” , “560001”
- “presidency building”, “st marks rd”
- “82”, “560001”
- None of the above
View Answer
"presidency building", "st marks rd"
import re
sequence = “”6yrs@hkbk-16yrs@cranes””
print( re.findall(“”\w”” , sequence) )
- [‘6’, ‘y’, ‘r’, ‘s’, ‘h’, ‘k’, ‘b’, ‘k’, ‘1’, ‘6’, ‘y’, ‘r’, ‘s’, ‘c’, ‘r’, ‘a’, ‘n’, ‘e’, ‘s’]
- [‘y’, ‘r’, ‘s’, ‘h’, ‘k’, ‘b’, ‘k’, ‘y’, ‘r’, ‘s’, ‘c’, ‘r’, ‘a’, ‘n’, ‘e’, ‘s’]
- [‘@’,’-‘,’@’]
- [“yrs”,”hkbk”,”yrs”,”cranes”]
View Answer
['6', 'y', 'r', 's', 'h', 'k', 'b', 'k', '1', '6', 'y', 'r', 's', 'c', 'r', 'a', 'n', 'e', 's']
class Student:
def Student(self):
print(“”Constructor””)
def display(self):
print(“”display method””)
obj = Student( )
obj.display()
- Constructor display method
- display method
- Error
- Constructor
View Answer
Constructor display method
class Student:
def __init__(self, regno, name = “”Arshiya”” ):
self.regno = regno
self.name = name
print(“”Object Created “”)
def __del__(self):
print(“”Object Destroyed “”)
def __str__(self):
return str(self.regno) + “” “” + self.name
def fun( ):
s1 = Student(1, “”Sikander””)
return s1
x = fun()
print(“”Back in main “”)
print(x)
- Object Created
Object Destroyed
1 Sikander - Object Created
1 Sikander
Object Destroyed - Object Created
Object Destroyed
1 Arshiya - Object Created
1 Arshiya
Object Destroyed
View Answer
Constructor display method
