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- Dictionarypython/ˈpʌɪθn/
noun
- 1. a large heavy-bodied non-venomous snake occurring throughout the Old World tropics, killing prey by constriction and asphyxiation.
- 2. a high-level general-purpose programming language.
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Learn how to use dictionaries in Python, a collection of key:value pairs that are ordered, changeable and do not allow duplicates. See how to create, access, modify and compare dictionaries with other data types.
Learn how to define, access, and manipulate dictionaries, a composite data type in Python. Dictionaries are collections of key-value pairs that can be accessed by keys, not indices.
Jun 19, 2024 · In Python, a dictionary can be created by placing a sequence of elements within curly {} braces, separated by a ‘comma’. The dictionary holds pairs of values, one being the Key and the other corresponding pair element being its Key:value.
- 12 min
- Create a Dictionary. We create a dictionary by placing key: value pairs inside curly brackets {}, separated by commas. For example, # creating a dictionary country_capitals = { "Germany": "Berlin", "Canada": "Ottawa", "England": "London" } # printing the dictionary print(country_capitals)
- Access Dictionary Items. We can access the value of a dictionary item by placing the key inside square brackets. country_capitals = { "Germany": "Berlin", "Canada": "Ottawa", "England": "London" } # access the value of keys print(country_capitals["Germany"]) # Output: Berlin print(country_capitals["England"]) # Output: London.
- Add Items to a Dictionary. We can add an item to a dictionary by assigning a value to a new key. For example, country_capitals = { "Germany": "Berlin", "Canada": "Ottawa", }
- Remove Dictionary Items. We can use the del statement to remove an element from a dictionary. For example, country_capitals = { "Germany": "Berlin", "Canada": "Ottawa", }
Jun 24, 2024 · Learn how to use dictionaries, one of the most powerful data types in Python, to associate keys and values. See how to create, access, modify, compare, and merge dictionaries with code examples and explanations.
Learn how to create, access, modify, and loop through a Python dictionary, a collection of key-value pairs where each key is associated with a value. A dictionary can contain any valid type of value, but the key must be immutable.
Nov 3, 2022 · Python dictionary represents a mapping between a key and a value. In simple terms, a Python dictionary can store pairs of keys and values. Each key is linked to a specific value. Once stored in a dictionary, you can later obtain the value using just the key.
