Python – Sorting List Items
Python list items can be sorted using the sort() method in specified orders including reverse order.
Python – Copying Lists
Python lists can be copied to a new list using the copy() method, list() function, or slice operator.
Python – Joining Two or More Lists
There are several ways to join, or concatenate, two or more lists in Python.
Python – Creating and Using Tuples
Python tuples are used to store multiple items in a single variable, and unlike a list, are unchangeable.
Python – Accessing Tuple Items
Python tuple items are indexed and can be accessed by referring to their index number.
Python – Extracting Tuple Items to Variables
When creating a Python tuple, items are normally assigned to it (“packing” a tuple). Extracting the items into variables is called “unpacking” the tuple.
Python – Updating Tuples
Python tuples are unchangeable, meaning that you cannot change, add, or remove items once the tuple is created. But there are some workarounds.
Python – Looping Through a Tuple
Python tuple items can be looped through and accessed using a for loop or while loop.
Python – Creating and Using Sets
Python sets are used to store multiple items in a single variable, and unlike a list, are unordered, unchangeable, and unindexed.
Python – Accessing Items in a Set
A specific item cannot be accessed in a set by referring to an index or a key. To access items, a for loop or the in keyword can be used.
Python – Adding Items to a Set
Once a Python set is created, you cannot change its items, but you can add new items using the add() method and update() method.
Python – Removing Items from a Set
Once a Python set is created, you cannot change its items, but you can remove items using the remove(), discard(), pop(), and clear() methods, and the del keyword.
Python – Looping Through a Set
Python set items can be accessed by looping through them using a for loop.
Python – Joining Two or More Sets
Python sets can be joined (combined) using the union(), update(), intersection(), difference(), and symmetric_difference() methods.
Python – Accessing Items in a Dictionary
Items in a Python dictionary can be accessed by referring to its key name using several methods.
Python – Changing Items in a Dictionary
Items in a Python dictionary can be changed by referring to its key name or using the update() method.
Python – Adding Items to a Dictionary
Adding an item to a Python dictionary is done by using a new index key and assigning a value to it.
Python – Removing Items from a Dictionary
There are multiple ways to remove items from a Python dictionary: the pop(), popitem(), and clear() methods, as well as the del keyword.
Python – Looping Through a Dictionary
Python dictionary items can be accessed by looping through them using a for loop.