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String Interpolation with f-Strings Format Stings in Python Building up str values via concatenation can involve a lot of syntax (and work)! Especially when you're concatenating non-str types and must construct str values Python has a

  1. String Interpolation with f-Strings

  2. Format Stings in Python • Building up str values via concatenation can involve a lot of syntax (and work)! • Especially when you're concatenating non-str types and must construct str values • Python has a special kind of string literal called a Format String or f-string • It doesn't give you any new capabilities over concatenation, it's just "syntactic sugar" • Consider the following examples: 2

  3. How to write an f-String Literal 1. Place an f before the opening quotation of a str literal 2. Surround any expression in curly braces • Many curly-brace surrounded expressions can be in same f-String When an f-String literal is evaluated, each curly brace expression is: 1. evaluated as if it were a normal expression 2. converted to a str 3. concatenated into the string literal 3

  4. String Interpolation • This concept is commonly called String Interpolation • Most modern programming languages have some syntax for doing this! • More powerful things you can do in f-Strings are beyond our scope • For more, refer to this guide: https://realpython.com/python-f-strings/ 4

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