Python Dictionaries - W3Schools
Dictionaries are used to store data values in key:value pairs. 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.
Python - Access Dictionary Items - W3Schools
You can access the items of a dictionary by referring to its key name, inside square brackets:
Python Sets - W3Schools
Sets are used to store multiple items in a single variable. Set is one of 4 built-in data types in Python used to store collections of data, the other 3 are List, Tuple, and Dictionary, all with different qualities and usage. A set is a collection which is …
Python For Loops - W3Schools
Python For Loops. A for loop is used for iterating over a sequence (that is either a list, a tuple, a dictionary, a set, or a string). This is less like the for keyword in other programming languages, and works more like an iterator method as found in …
Python Dictionary Methods - W3Schools
pop () Removes the element with the specified key. popitem () Removes the last inserted key-value pair. setdefault () Returns the value of the specified key. If the key does not exist: insert the key, with the specified value. update () Updates the dictionary with the specified key-value pairs.
Python Tutorial - W3Schools
Python Examples. Learn by examples! This tutorial supplements all explanations with clarifying examples. See All Python Examples
Python Lists - W3Schools
Lists are one of 4 built-in data types in Python used to store collections of data, the other 3 are Tuple, Set, and Dictionary, all with different qualities and usage. Lists are created using square brackets:
Python Removing Items from a Dictionary - W3Schools
Example. The popitem() method removes the last inserted item (in versions before 3.7, a random item is removed instead): thisdict = {. "brand": "Ford", "model": "Mustang", "year": 1964. }
Python Booleans - W3Schools
Boolean Values. In programming you often need to know if an expression is True or False. You can evaluate any expression in Python, and get one of two answers, True or False. When you compare two values, the expression is evaluated and Python returns the Boolean answer:
Python Tuples - W3Schools
Tuples are used to store multiple items in a single variable. Tuple is one of 4 built-in data types in Python used to store collections of data, the other 3 are List, Set, and Dictionary, all with different qualities and usage.