How do I use nested f-strings in Python 3.12?

How do I use nested f-strings in Python 3.12?

In Python 3.12, you can nest f-strings by including one f-string inside another. For example:

name = 'Alice'
age = 30
nested_string = f'{name} is {age} years old and says: {f"Hello, I'm {name}!"}'
print(nested_string)

This will output: 'Alice is 30 years old and says: Hello, I'm Alice!'.

Can you give me another example of nested f-strings?

Sure! Here's another example:

item = 'apple'
quantity = 5
message = f'I have {quantity} {item}s, which is {f"{quantity * 2} pieces in total!"}'
print(message)

This will output: 'I have 5 apples, which is 10 pieces in total!'.

What are the benefits of using f-strings?

F-strings are more readable and concise compared to older string formatting methods. They also allow for inline expressions, making it easier to embed variables and expressions directly within the string.

Are there any limitations to using f-strings?

Yes, f-strings can only be used in Python 3.6 and later. Additionally, they cannot be used in situations where the string is not a literal, such as when constructing strings dynamically.