Tuple

Tuples are used to store multiple items in a single variable.
A tuple is a collection which is ordered and unchangeable.
Tuples are written with round brackets.

thistuple = ("apple", "banana", "cherry")

• Tuple items are ordered, unchangeable, and allow duplicate values.
  • When we say that tuples are ordered, it means that the items have a defined order, and that order will not change.
  • Tuples are unchangeable, meaning that we cannot change, add or remove items after the tuple has been created.
  • Since tuples are indexed, they can have items with the same value
• Tuple items are indexed, the first item has index [0], the second item has index [1] etc.

Tuple items can be String, int and boolean data types

tuple1 = ("apple", "banana", "cherry")
tuple2 = (1, 5, 7, 9, 3)
tuple3 = (True, False, False)

List

Lists are used to store multiple items in a single variable.
Lists are created using square brackets:

thislist = ["apple", "banana", "cherry"]

• List items are ordered, changeable, and allow duplicate values.
  • List items have a defined order
  • The list is changeable, meaning that we can change, add, and remove items in a list after it has been created
  • Since lists are indexed, lists can have items with the same value
• List items are indexed, the first item has index [0], the second item has index [1] etc.
• List items can be String, int and boolean data types.

Dictionary

Dictionaries are used to store data values in key: value pairs.
A dictionary is a collection which is ordered*, changeable and does not allow duplicates.

• Dictionaries cannot have two items with the same key (duplicate values will overwrite existing values)

thisdict = {
  "brand": "Ford",
  "model": "Mustang",
  "year": 1964,
  "year": 2020
}

Dictionaries are written with curly brackets, and have keys and values:

thisdict = {
  "brand": "Ford",
  "model": "Mustang",
  "year": 1964
}
print(thisdict)

Set

Sets are used to store multiple items in a single variable.
Set items are unordered, unchangeable, and do not allow duplicate values.
Sets are written with curly brackets.

thisset = {"apple", "banana", "cherry"}