Python Questions and Answers – Decorators

This set of Python Multiple Choice Questions & Answers (MCQs) focuses on “Decorators”.

1. What will be the output of the following Python code?

def mk(x):
    def mk1():
        print("Decorated")
        x()
    return mk1
def mk2():
    print("Ordinary")
p = mk(mk2)
p()

a)

    Decorated
    Decorated

b)

    Ordinary
    Ordinary

c)

    Ordinary
    Decorated

d)

    Decorated
    Ordinary

2. In the following Python code, which function is the decorator?

def mk(x):
    def mk1():
        print("Decorated")
        x()
    return mk1
def mk2():
    print("Ordinary")
p = mk(mk2)
p()

a) p()
b) mk()
c) mk1()
d) mk2()
View Answer

3. The ______ symbol along with the name of the decorator function can be placed above the definition of the function to be decorated works as an alternate way for decorating a function.
a) #
b) $
c) @
d) &
View Answer

4. What will be the output of the following Python code?

def ordi():
	print("Ordinary")
ordi
ordi()

a)

    Address
    Ordinary

b)

    Error
    Address

c)

    Ordinary
    Ordinary

d)

    Ordinary
     Address

5. The two snippets of the following Python codes are equivalent.

CODE 1
  @f
def f1():
        print(“Hello”)
CODE 2
  def f1():
         print(“Hello”)
f1 = f(f1)

a) True
b) False
View Answer

6. What will be the output of the following Python function?

def f(p, q):
	return p%q
f(0, 2)
f(2, 0)

a)

    0
    0

b)

    Zero Division Error
    Zero Division Error

c)

    0
    Zero Division Error

d)

    Zero Division Error
    0

7. What will be the output of the following Python code?

def f(x):
    def f1(a, b):
        print("hello")
        if b==0:
            print("NO")
            return
        return f(a, b)
    return f1
@f
def f(a, b):
    return a%b
f(4,0)

a)

    hello
    NO

b)

    hello
    Zero Division Error

c) NO
d) hello
View Answer

    hello
    NO

8. What will be the output of the following Python code?

def f(x):
    def f1(*args, **kwargs):
        print("*"* 5)
        x(*args, **kwargs)
        print("*"* 5)
    return f1
def a(x):
    def f1(*args, **kwargs):
        print("%"* 5)
        x(*args, **kwargs)
        print("%"* 5)
    return f1
@f
@a
def p(m):
    print(m)
p("hello")

a)

    *****
    %%%%%
    hello
    %%%%%
    *****

b) Error
c) *****%%%%%hello%%%%%*****
d) hello
View Answer

    *****
    %%%%%
    hello
    %%%%%
    *****

9. The following python code can work with ____ parameters.

def f(x):
    def f1(*args, **kwargs):
           print("Sanfoundry")
           return x(*args, **kwargs)
    return f1

a) 2
b) 1
c) any number of
d) 0
View Answer

10. What will be the output of the following Python code?

def f(x):
    def f1(*args, **kwargs):
        print("*", 5)
        x(*args, **kwargs)
        print("*", 5)
    return f1
@f
def p(m):
    p(m)
print("hello")

a)

    *****
    hello

b)

    *****
    *****
    hello

c) *****
d) hello
View Answer

11. A function with parameters cannot be decorated.
a) True
b) False
View Answer

12. Identify the decorator in the snippet of code shown below.

def sf():
     pass
sf = mk(sf)
@f
def sf():
     return

a) @f
b) f
c) sf()
d) mk
View Answer

13. What will be the output of the following Python code?

class A:
    @staticmethod
    def a(x):
        print(x)
A.a(100)

a) Error
b) Warning
c) 100
d) No output
View Answer

14. What will be the output of the following Python code?

def d(f):
    def n(*args):
        return '$' + str(f(*args))
    return n
@d
def p(a, t):
    return a + a*t 
print(p(100,0))

a) 100
b) $100
c) $0
d) 0
View Answer

15. What will be the output of the following Python code?

def c(f):
    def inner(*args, **kargs):
        inner.co += 1
        return f(*args, **kargs)
    inner.co = 0
    return inner
@c
def fnc():
    pass
if __name__ == '__main__':
    fnc()
    fnc()
    fnc()
    print(fnc.co)

a) 4
b) 3
c) 0
d) 1
View Answer

Sanfoundry Global Education & Learning Series – Python.

To practice all areas of Python, here is complete set of 1000+ Multiple Choice Questions and Answers.