Python Quiz

What is the output of the following code?

• 10

  15

• 25

  125

• Error: invalid syntax

Answer explanation

Using two multiplication symbols, we can make a power relationship in Python. We call operator an exponent operator. For example, the result of expression 5 3 is 125.

What is the output of the following code?

var = "James" * 2 * 3

print(var)

• JamesJamesJamesJamesJamesJames

• JamesJamesJamesJamesJames

• Error: invalid syntax

Answer explanation

We can use * operator to repeat the string n number of times. For example, in the above question, First, we repeated the string two times, and again we repeated the output string three times.

What is the output of the following code?

sampleSet = {"Jodi", "Eric", "Garry"}

sampleSet.add(1, "Vicki")

print(sampleSet)

• {‘Vicki’, ‘Jodi’, ‘Garry’, ‘Eric’}

•  {‘Jodi’, ‘Vicki’, ‘Garry’, ‘Eric’}

•  The program executed with error

Answer explanation

The set is an unordered data structure. Therefore, we cannot access/add/remove its elements by index number.

What is the output of the following code?

listOne = [20, 40, 60, 80]

listTwo = [20, 40, 60, 80]

print(listOne == listTwo)

print(listOne is listTwo)

• True

  True

• True

  False

• False

  True

• False

  False

Answer explanation

The == (Equal To) operator used to compare the values of two objects and The is operator compares the identity of two objects.

What is the output of the following code?

sampleList = ["Jon", "Kelly", "Jessa"]

sampleList.append(2, "Scott")

print(sampleList)

• The program executed with errors

• [‘Jon’, ‘Kelly’, ‘Scott’, ‘Jessa’]

• [‘Jon’, ‘Kelly’, ‘Jessa’, ‘Scott’]

• [‘Jon’, ‘Scott’, ‘Kelly’, ‘Jessa’]

Answer explanation

The append() method appends an item to the end of the list. Therefore, we cannot pass the index number to it.

What is the output of the following code

• Salary: 12000 Salary: 8000

• Salary: 8000 Salary: 12000

• Salary: 1200 Salary: 8000

• The program failed with errors

Answer explanation

If you define a variable with the same name inside the function and global scope, a function will refer to the local variable by default.

What is the output of the following code?

p, q, r = 10, 20 ,30

print(p, q, r)

• 10 20

• 10 20 30

• 10 30 20

• Error: invalid syntax

Answer explanation

In Python, We can do simultaneous assignments to more than one variable.

What is the output of the following code?

str = "pynative"

print (str[1:3])

• py

• yn

• pyn

• yna

Answer explanation

Remember, the index always starts from 0. Therefore, str [1 : 3] is “yn”

What is the output of the following code?

for i in range(10, 15, 1):

print( i, end=', ')

• 10, 11, 12, 13, 14,

• 10, 11, 12, 13, 14,15,16

• 10, 11, 12, 13, 14,15

Answer explanation

Remember, the range doesn’t include the stop number in the output. Read Python range function for more details.

What is the Output of the following code?

for x in range(0.5, 5.5, 0.5):

print(x)

• [0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5]

• [0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5]

• [0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5]

• The Program executed with errors

Answer explanation

We cannot use float numbers in range() function. Please refer to How to generate a range of float numbers.