Python Dictionary. Everything about Dictionaries in Python From Basic To Advance.
Python Dictionary In this tutorial, you'll learn everything about Python dictionaries; how they are created, accessing, adding, removing elements from them and various built-in methods. Video: Python Dictionaries to Store key/value Pairs Python dictionary is an unordered collection of items. Each item of a dictionary has a key/value pair. Dictionaries are optimized to retrieve values when the key is known. Creating Python Dictionary Creating a dictionary is as simple as placing items inside curly braces {} separated by commas. An item has a key and a corresponding value that is expressed as a pair (key: value). While the values can be of any data type and can repeat, keys must be of immutable type (string, number or tuple with immutable elements) and must be unique. # empty dictionary my_dict = {} # dictionary with integer keys my_dict = {1: 'apple', 2: 'ball'} # dictionary with mixed keys my_dict = {'name': 'John', 1: [2, 4, 3]} # using dict() my_di...
