How to Format a Dictionary in Python

Python's format() method makes it easy and intuitive to format data from a dictionary into a string.

string.format()

This method is especially useful for creating display templates and custom messages.

Example

Let's create a dictionary with three key-value pairs: first name, last name, and year.

anagrafica = {'nome':'Andrea', 'cognome':'Minini', 'anno':2018 }

It’s a simple example, but it serves its purpose.

Next, we'll define a string using the format() method.

We’ll place placeholders inside curly braces {} that correspond to the dictionary's keys.

stringa = 'My name is {nome} {cognome} and the year is {anno:d}'.format(**anagrafica)

The placeholders {nome} and {cognome} are strings, while {anno} is an integer (d).

In the format method, you reference the dictionary by using two asterisks as a prefix.

Finally, print the formatted string using the print() function.

print(stringa)

The output will be:

My name is Andrea Minini and the year is 2018

The placeholders are replaced with the corresponding values from the dictionary.

And that’s it!