What are f-strings in Python 3.12?

Can you explain what f-strings are in Python 3.12?

F-strings, or formatted string literals, allow you to embed expressions inside string literals, using curly braces. They were introduced in Python 3.6 and are a concise way to format strings.

How do I use f-strings to format numbers?

You can format numbers in f-strings by specifying format specifiers within the curly braces. For example, f'{value:.2f}' formats the number to two decimal places.

Can I use f-strings with dictionaries?

Yes, you can use f-strings with dictionaries by accessing the dictionary keys directly within the curly braces, like f'{my_dict['key']}'.

What are some advantages of using f-strings over other formatting methods?

F-strings are more readable and concise compared to older methods like % formatting or str.format(). They also allow for inline expressions.