String.format()

String.format()

Formatting printed output to meet user requirements

Multiple Select

In this lesson I am going to learn to ... ?

• Format printed output to meet specific requirements

• Format printed output suitable for the user

• Save output to text files

• Input data from text files

Multiple Choice

Which code will loop through all items in the data structure?

wizards = ["Gandalf", "Saruman", "Sauron", "Radagast"]

• for wizard in wizards:

  print(wizard)

• for wizards in wizard:

  print(wizard)

• while wizard in wizards:

  print(wizard)

• for wizard in range(len(wizards)):

  print(wizard)

Multiple Choice

Output from this program will be .... ?

• Cheese = 4

  Ham = 4

  Tuna = 3

• Cheese = 3

  Ham = 4

  Tuna = 4

• Cheese = 4

  Tuna = 3

  Ham = 4

• Cheese=4

  Ham=4

  Tuna=3

Multiple Select

Choose two reasons for this program output being NOT user-friendly ...

• No titles on the output

• Number values are not aligned

• Too few items

• Not in alphabetical order

Multiple Select

The maximum width of program output is 80 characters and each column must be of an equal size.

Which of these options represent valid numbers of columns in the output?

• 4

• 5

• 3

• 6

Multiple Choice

What output would this produce?

print("Gandalf has {} personas.".format(2))

• Gandalf has 2 personas

• Gandalf has personas

• Gandalf has personas Gandalf has personas

• Gandalf has two personas

Multiple Choice

What output would this produce?

print("{}, {} and {}.".format("red", "green", "blue"))

• red, green and blue

• blue, green and red

• red, green, blue

• red, red and blue

Multiple Choice

What output would this produce?

print("I like to eat {1}, {2} and {0}".format("fish","chips","peas"))

• I like to eat chips, peas and fish

• I like to eat fish, chips and peas

• I like to eat peas, chips and fish

• I like to eat chips, fish and peas

Multiple Choice

What output would this produce?

a = 8

b = 5

c = "apples"

d = "bananas"

print("Gandalf ate {1} {0}",format(d,a))

• Gandalf ate 8 bananas

• Gandalf ate 8 apples

• Gandalf ate 5 apples

• Gandalf ate bananas 8

Multiple Choice

Which field widths would produce columnar output as shown?

• {:8}{:7}{:5}

• {:7}{:6}{:5}

• {:7}{:7}{:7}

• {:6}{:5}{:5}

Multiple Choice

Choose the field that is right-aligned ...

• {:>10}

• {:<10}

• {:^10}

• {:.10f}

Multiple Choice

Choose the field that is centre-aligned ...

• {:>6}

• {:<6}

• {:^6}

• {:.6f}

Multiple Choice

Predict the output of this code:

print("{0:<10}{2:^8}{1:>4}".format("Wizard","Colour","Age"))

print("{0:<10}{2:^8}{1:>4}".format("Gandalf","Grey","999"))

print("{0:<10}{2:^8}{1:>4}".format("Sauron","Black","2500"))

print("{0:<10}{2:^8}{1:>4}".format("Saruman","White","1199"))

Multiple Select

Choose all the ways in which the output has been improved ...

• Arranged in columns

• Alignment applied

• Text dividers used

• Field headings used

Multiple Select

In this lesson I have learned to ...

• Format printed output using <string>.format()

• Use placeholders {}

• Use alignment

• Arrange output in columns

Open Ended

Thinking Hard

What have you learnt today?

What can you do with this knowledge/skill/understanding?

What do you still need to know?

(press Shift+Enter to take a new line ...)

Poll

How much of this lesson have you understood?

• None of it

• Some of it

• Most of it

• All of it