Question 1

Which of the following format specifiers would you use to display the number 12345678 as '12,345,678' in Python using the format method?

Accepted Answer

$$\{0:10,d\}$$

Question 2

Suppose you want to print the following table using the format method in Python:

Rank   Player               HR
1      Barry Bonds          762
2      Hank Aaron           755
3      Babe Ruth            714

Which format string would best align the columns as shown?

Accepted Answer

$$'\{0:5n\}\{1:3n\}'$$

Question 3

Given the code:

print('The population of {0} is {1:.2%} of the U.S. population.'.format('Texas', 26438000/309000000))

What will be the output?

Accepted Answer

The population of Texas is 8.56% of the U.S. population.

Question 4

Which escape sequence would you use to insert a horizontal tab between two words in a string?

Accepted Answer

$$\backslash t$$

Question 5

If you want to print the string 'We are the so-called "Vikings" from the north.' in Python, which of the following assignments is correct?

Accepted Answer

txt = 'We are the so-called "Vikings" from the north.'

Question 6

What is the output of the following code?

print('a	b	c'.expandtabs(6))

Accepted Answer

a     b     c

Question 7

Which of the following statements about the rstrip() method is TRUE?

Accepted Answer

It removes all ending spaces and escape sequences from a string.

Question 8

You want to print three words separated by dashes, like 'tic-tac-toe'. Which print statement achieves this?

Accepted Answer

print('tic', 'tac', 'toe', sep='-')

Question 9

What will be the output of the following code?

print('Hello', end=' ')
print('World!')

Accepted Answer

Hello World!

Question 10

Suppose you want to right-justify the string 'Python' in a field of width 10 using the format method. Which code achieves this?

Accepted Answer

'{0:\u003e10s}'.format('Python')

Question 11

A factory produces 2 million cars each year with a production cost of $$8,300 per car. If each car sells for 20$$,000, what is the total profit from selling all the cars? (Use $$	ext{profit} = (	ext{selling price} - 	ext{cost}) 	imes 	ext{number of cars})$$

Accepted Answer

$$23,400,000,000$$

Question 12

Which of the following is the correct way to left-justify a number in a field of width 8 using the format method?

Accepted Answer

'{0:\u003c8d}'.format(123)

Question 13

What is the length of the string 'a	b	c' in Python?

Accepted Answer

5

Question 14

Which of the following statements about escape sequences is FALSE?

Accepted Answer

A forward slash (/) can be used to create escape sequences.

Question 15

Given the code:

print('Knowledge is knowing that a tomato is a fruit.',\
      'Wisdom is knowing not to put it in a fruit salad.')

What is the output?

Accepted Answer

Knowledge is knowing that a tomato is a fruit. Wisdom is knowing not to put it in a fruit salad.

Question 16

Which of the following best describes the default justification for strings when using the format method in Python?

Accepted Answer

Left-justified

Question 17

If you want to display a percentage with two decimal places and a thousands separator, which format specifier should you use?

Accepted Answer

$$\{0:10,.2\%\}$$

Question 18

What is the result of the following code?

print(int('7
'))

Accepted Answer

7

Question 19

Which of the following statements about the sep argument in the print function is correct?

Accepted Answer

It changes the separator between multiple values in the output.

Question 20

Suppose you want to center the string 'Data' in a field of width 10 using the format method. Which code would you use?

Accepted Answer

'{0:^10s}'.format('Data')

Outputs and Formatting in Python

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