How to format strings in python?

Python offers several ways to format strings, including the older % operator method and the newer str.format() and f-string methods.

Example using % operator:

  name = 'John'
  age = 30
  result = 'My name is %s and I am %d years old.' % (name, age)
  

Solution using str.format():

  result = 'My name is {} and I am {} years old.'.format(name, age)
  

Solution using f-string (Python 3.6+):

  result = f'My name is {name} and I am {age} years old.'