Strings & Formatting

What Is a String?

A string (str) is a sequence of characters enclosed in quotes. It can hold names, messages, sentences, symbols, or even be empty.

In Python, you can use:

• Single quotes: 'hello';
• Double quotes: "hello".

Both forms work the same way.

Multiline strings

Sometimes, you need to write text that spans several lines — like a paragraph or a message. For this, Python uses triple quotes:

• '''...''';
• """...""".

These preserve line breaks and spacing.

String Formatting

Sometimes you need to insert values into a string, such as names, numbers, or results. Python supports several formatting methods, but the most common and readable is the f-string.

f-Strings

With an f-string, you place variables or expressions inside {} directly in the text. Add the letter f before the opening quote to enable this feature.

Summary

• Strings in Python are written using quotes — single or double;
• Triple quotes are used for multiline text;
• f-strings allow dynamic values to be inserted into strings.