Basics

Python String Formatting

Python string formatting uses f-strings for readable interpolation.

Introduction to Python String Formatting

String formatting in Python is a powerful tool that allows developers to create dynamic and readable strings. One of the most modern and preferred ways to format strings in Python is using f-strings, which were introduced in Python 3.6. F-strings provide a concise and readable way to embed expressions inside string literals, using curly braces {} as delimiters.

Basic Usage of F-Strings

F-strings make it easy to incorporate variables into strings. Simply prefix the string with an f or F, and place expressions inside curly braces.

Formatting Numbers with F-Strings

F-strings also support number formatting, which is useful for displaying numbers in a specific way. You can format numbers for decimals, percentages, and more by adding a colon and a format specifier inside the curly braces.

Multiline F-Strings for Complex Formatting

For more complex string formatting, you can use multiline f-strings. This is especially useful when the string spans multiple lines or when combining multiple variables and expressions.

Escaping Braces in F-Strings

If you need to include literal curly braces in your f-string, you can escape them by doubling them, like so: {{ or }}.

Conclusion

F-strings provide an efficient, readable, and versatile way to format strings in Python. Whether you're working with simple variables or complex expressions, f-strings offer a powerful toolset to enhance your string handling capabilities. For more advanced formatting options, consider looking into Python's format method and the str.format() mini-language.

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