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🖥️ Dictionaries in Python: Definition, Syntax & Declaration
Dictionary in Python is a collection of items, which is: unordered, indexed by keys and mutable – so it can be changed, once it has been created.
While other Data Types have value as an element, a dictionary in Python has a “key: value” pair, where each key is mapped to a single value. Consequently, dictionaries are optimised to get values, when the key is known!
The important properties of Python dictionaries, are as follows:
○ Dictionaries are unordered – Items stored in a dictionary are not kept in order.
○ Dictionaries are mutable – They can be changed in place, grow and shrink – on demand.
○ Accessed by keys – Items are accessed by keys (indexed), not by their position (index).
○ Dictionaries can be nested – A dictionary can contain another dictionary – and so forth.
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Great! Now that you have understood what is a dictionary in Python, let’s move forward and discover How to create a dictionary in Python. But, also what are all of the operations that you can perform on it in order to: Add, Remove or Access an item, even Search for an item inside of the dictionary. Are you interested to learn Dictionary in Python?
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Dictionaries in Python: Definition, Syntax & Declaration
