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Dictionaries in Python is a data structure, used to store values in key: value format. This makes it different from lists, tuples, and arrays as in a dictionary each key has an associated value. Note: As of Python version 3.7, dictionaries are ordered and can not contain duplicate keys.
A dictionary is a collection which is ordered*, changeable and do not allow duplicates. As of Python version 3.7, dictionaries are ordered. In Python 3.6 and earlier, dictionaries are unordered. Dictionaries are written with curly brackets, and have keys and values:
Defining a Dictionary. Dictionaries are Python’s implementation of a data structure that is more generally known as an associative array. A dictionary consists of a collection of key-value pairs. Each key-value pair maps the key to its associated value.
The Python dictionary is one of the language’s most powerful data types. In other programming languages and computer science in general, dictionaries are also known as associative arrays. They allow you to associate one or more keys to values.
Python - Dictionary. The dictionary is an unordered collection that contains key:value pairs separated by commas inside curly brackets. Dictionaries are optimized to retrieve values when the key is known. The following declares a dictionary object.
A Python dictionary is a collection of key-value pairs, where each key has an associated value. Use square brackets or get() method to access a value by its key. Use the del statement to remove a key-value pair by the key from the dictionary.
A Python dictionary is a collection of key-value pairs. It is defined using curly braces {} in which you place key-value pairs such that each key-value pair is separated by a comma. The best way to understand this is by having a look at some examples.