Python Online Test

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

>>> a={1,2,3}
>>> b=a
>>> b.remove(3)
>>> a

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

import turtle()
t=turtle.Pen()
t.goto(50,60)
t1=t.clone()
t1.ycor()

3. What will be the output of the following Python code snippet?

a={1:"A",2:"B",3:"C"}
a.setdefault(4,"D")
print(a)

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

re.split(r'(n\d)=', 'n1=3.1, n2=5, n3=4.565')

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

l1=[2,4,6]
l2=[-2,-4,-6]
for i in zip(l1, l2):
	print(i)

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

>>> a={1,2,3}
>>> b=frozenset([3,4,5])
>>> a-b

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

def example(a):
    a = a + '2'
     a = a*2
    return a
>>>example("hello")

8. The output of the following Python code is similar to the alphabet _______________

import turtle
t=turtle.Pen()
t1=turtle.Pen()
t2=turtle.Pen()
t.forward(100)
t1.forward(100)
t2.forward(100)
t1.left(90)
t1.forward(75)
t2.right(90)
t2.forward(75)

9. What will be the output of the following Python code, if the time module has already been imported?

def num(m):
	t1 = time.time()
	for i in range(0,m):
		print(i)
	t2 = time.time()
	print(str(t2-t1))

    num(3)

10. Any odd number on being AND-ed with ________ always gives 1. Hint: Any even number on being AND-ed with this value always gives 0.

11. Which of these is false about recursion?

12. What is the default value of encoding in encode()?

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

class A:
    def __init__(self):
        self._x = 5       
class B(A):
    def display(self):
        print(self._x)
def main():
    obj = B()
    obj.display()
main()

14. Is Python code compiled or interpreted?

15. Which of the following statements is true?

16. Is the following Python code valid?

class B(object):
  def first(self):
    print("First method called")
  def second():
    print("Second method called")
ob = B()
B.first(ob)

17. Given a string example="hello" what is the output of example.count('l')?

18. What are the two main types of functions?

19. To which of the following the "in" operator can be used to check if an item is in it?

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

x = [34, 56]
print((''.join(list(map(str, x)))),)

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

i = 5
while True:
    if i%0O9 == 0:
        break
    print(i)
    i += 1

22. Which is the most appropriate definition for recursion?

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

print('abcd'.partition('cd'))

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

f = None
for i in range (5):
    with open("data.txt", "w") as f:
        if i > 2:
            break
print(f.closed)

25. What will be the output of the following Python code snippet?

x = 'abcd'
for i in range(len(x)):
    x[i].upper()
print (x)

26. To obtain a list of all the functions defined under sys module, which of the following functions can be used?

27. Which of the following is the use of function in python?

28. Which of the following formatting options can be used in order to add ‘n’ blank spaces after a given string ‘S’?

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

class Count:
    def __init__(self, count = 0):
       self.__count = count

c1 = Count(2)
c2 = Count(2)
print(id(c1) == id(c2), end = " ")

s1 = "Good"
s2 = "Good"
print(id(s1) == id(s2))

30. The function pow(x,y,z) is evaluated as:

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

class fruits:
    def __init__(self):
        self.price = 100
        self.__bags = 5
    def display(self):
        print(self.__bags)
obj=fruits()
obj.display()

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

x = "abcdef"
i = "a"
while i in x[1:]:
    print(i, end = " ")

33. What will be the output of the following Python code snippet?

print([[i+j for i in "abc"] for j in "def"])

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

'{0:.2f}'.format(1.234)

35. Which of the following functions results in case insensitive matching?

36. What will be the output of the following Python code if the system date is: 6/19/2017

tday=datetime.date.today()
tdelta=datetime.timedelta(days=10)
print(tday+tdelta)

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

class Truth:
	pass
x=Truth()
bool(x)

38. What will be the output of the following Python code snippet?

print('The sum of {0:b} and {1:x} is {2:o}'.format(2, 10, 12))

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

def change(i = 1, j = 2):
    i = i + j
    j = j + 1
    print(i, j)
change(j = 1, i = 2)

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

x = [34, 56]
print(len(map(str, x)))

41. Suppose d = {"john":40, "peter":45}, what happens when we try to retrieve a value using the expression d["susan"]?

42. What is the use of tell() method in python?

43. Which of the codes shown below results in a match?

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

def C2F(c):
    return c * 9/5 + 32
print C2F(100)
print C2F(0)

45. Which operator is overloaded by __invert__()?

46. What will be the output of the following Python code snippet?

>>>import collections
>>> a=collections.Counter([1,1,2,3,3,4,4,4])
>>> a

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

i = 2
while True:
    if i%3 == 0:
        break
    print(i)
    i += 2

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

print("abcdef".find("cd"))

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

d = {"john":40, "peter":45}
d["john"]

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

A = [[1, 2, 3],
     [4, 5, 6],
     [7, 8, 9]]
[A[i][i] for i in range(len(A))]