How to use curly braces in python

Опубликовано: 22 Октябрь 2024
на канале: CodeNode

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curly braces `{}` in python are used primarily in two contexts: to define dictionaries and to define sets. below is an informative tutorial on how to use curly braces in both contexts, along with code examples.

1. using curly braces for dictionaries

a dictionary in python is a collection of key-value pairs. each key is unique, and it is used to access its corresponding value. dictionaries are defined using curly braces.

#### creating a dictionary

you can create a dictionary by enclosing key-value pairs in curly braces:

#### accessing dictionary values

you can access the values in a dictionary using their corresponding keys:

#### adding and modifying dictionary entries

you can add new key-value pairs or modify existing ones:

#### removing dictionary entries

you can remove a key-value pair using the `del` statement or the `pop()` method:

2. using curly braces for sets

a set is an unordered collection of unique elements. sets can also be created using curly braces.

#### creating a set

you can create a set by enclosing elements in curly braces:

#### adding and removing elements in a set

you can add elements to a set using the `add()` method and remove them using the `remove()` or `discard()` methods:

#### set operations

sets support various operations like union, intersection, and difference:

summary

curly braces in python are used for creating dictionaries and sets.
dictionaries store key-value pairs, while sets store unique elements.
you can perform various operations on both dictionaries and sets, including adding, modifying, and removing entries.

using curly braces effectively allows you to manage collections of data in python, making your code more organized and efficient.

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