f string / Format String in Python

Python f-string is the newest Python syntax to do string formatting. It is available since Python 3.6. Python f-strings provide a faster, more readable, more concise, and less error prone way of formatting strings in Python.

The f-strings have the f prefix and use {} brackets to evaluate values.

For example :

val = "intheworldperfecfull"

print(f'{val} test')

The output :

intheworldperfecfull test

Source : https://zetcode.com/python/fstring/