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Learn Strings & Formatting | Basic Syntax
Introduction to Python with AI

bookStrings & Formatting

Note
Example Prompts
  • What is a string in Python? How do I write one with single or double quotes? Show code example.
  • How do I create a multiline string in Python? Provide code example.
  • How do f-strings work in Python? Explain with examples.
  • Make short cheatsheet for "Strings & Formatting" topic.

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 β€” 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 β€” single or double;
  • Triple quotes are used for multiline text;
  • f-strings allow dynamic values to be inserted into strings.

Task

  1. Write a short greeting using a name stored in a variable.

  2. Try to format it using an f-string.

    For example: if the name is "Alex", the program should display a personalized message.

Everything was clear?

How can we improve it?

Thanks for your feedback!

SectionΒ 1. ChapterΒ 5

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Can you show me an example of how to use an f-string with a variable?

What happens if I forget the 'f' before the string?

Can I use f-strings with numbers or only with text?

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bookStrings & Formatting

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Note
Example Prompts
  • What is a string in Python? How do I write one with single or double quotes? Show code example.
  • How do I create a multiline string in Python? Provide code example.
  • How do f-strings work in Python? Explain with examples.
  • Make short cheatsheet for "Strings & Formatting" topic.

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 β€” 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 β€” single or double;
  • Triple quotes are used for multiline text;
  • f-strings allow dynamic values to be inserted into strings.

Task

  1. Write a short greeting using a name stored in a variable.

  2. Try to format it using an f-string.

    For example: if the name is "Alex", the program should display a personalized message.

Everything was clear?

How can we improve it?

Thanks for your feedback!

SectionΒ 1. ChapterΒ 5
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