In PEP 498 a new string formatting mechanism was introduced called as "Literal String Interpolation" or more famously called as f-strings.
The Python f-strings are a way by which you can embed expressions inside string literals. It makes use of a very minimal syntax (prefixed with the word 'f').
Let us take a look at the Syntax:
f"Some String Literal {expression-1} more text {expression-2}"
Note: The f-string literal string expressions are evaluated at run-time, and they are expressed with curly braces as shown above.
Examples:
Example 1:user = 'Mike'
f'The user name is {user}'
Output
'The user name is Mike'
![f-strings-python-example-1 f-strings-python-example-1](https://code2care.org/python/python-f-string-formatted-string-literals-syntax-and-examples/images/f-strings-python-example-1.jpg)
Example 2: f-strings with print function
name = 'Alex'
age = 22
city = 'New York'
print(f"The name is {user}, age is {age}, city {city}")
Output:
The name is Mike, age is 22, city New York
![f-strings-example-2-with-input-function-python f-strings-example-2-with-input-function-python](https://code2care.org/python/python-f-string-formatted-string-literals-syntax-and-examples/images/f-strings-example-2-with-input-function-python.jpg)
The f-string was designed with the intention to have a simpler way to format strings in Python as the existing ways of formatting are either error-prone, inflexible, or cumbersome.
Further readings:
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