Displaying Integers with the format() Function
Using the format()
function, you can output strings in various formats.
This process is known as formatting
, and it involves using a colon :
inside the curly braces { }
to specify how the data should be displayed.
"{:format_option}".format(value)
-
{ }
: Placeholder indicating where to insert the value -
:
: Specifies format options
Displaying Integers
To output integers, use {:d}
by placing the letter d
to the right of the colon inside the curly braces.
number = 123 # Integer output formatted = "number: {:d}".format(number) print(formatted) # "number: 123"
If you omit d
, Python will automatically apply the appropriate format based on the value's data type.
number = 123 # Integer output formatted = "number: {}".format(number) print(formatted) # "number: 123"
Specifying Output Width
Using a number to the right of the colon specifies the width of the resulting string.
For instance, {:5}
sets the width of the output string to 5
.
number = 123 formatted = "number: {:5}".format(number) # Set width to 5 # Inserts 2 spaces before 123 print(formatted) # "number: 123",
To pad the width with zeros, prefix the width value with a 0
.
number = 123 formatted = "number: {:05}".format(number) # Set width to 5 # Inserts 2 zeros before 123 print(formatted) # "number: 00123"
To output an integer
using the format()
function with a fixed width
, what output format should be used?
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