Learn basics of python collection data type (list, tuple, dictionary and set) instantly

 

	List	Tuple	Dictionary	Set
Definition	Its a mutable/changeable object and its collection is ordered.   Allow duplicate members   Note: Its changeable/ immutable object.(i.e, able to update,add or remove the list  item)	Its a immutable/un changeable  object and its collection is ordered.   Allow duplicate members   Note: Its unchangeable/ immutable object.(i.e, unable to update, add, remove the tuple item)   However, we can  delete items from it.	Its a mutable/ changeable  object and its collection is unordered.   No duplicate members   Note: Its changeable/ immutable object.(i.e, able to update,add or remove the dictionary item)	Its  a collection of unordered item.   No duplicate members   Its used to perform mathematical set operations like union, intersection, symmetric difference, etc.   Note: A set itself may be modified, but the items contained in the set must be of an immutable/non changeable.
Denoted by	Its denoted by []   For example: Fruits =[‘apple’, ‘banana’]	Its denoted by ()   For example: Fruits =(‘apple’, ‘banana’)	Its denoted by  {key:  value}   For example: Fruits={‘apple’:’red’, ’banana’:’yellow’}	Its denoted by  {}   For example: Fruits={‘apple’, ’banana’}
Accessed by	Its  accessed by index   For example:   Fruits =[‘apple’, ‘banana’] print(Fruit[0]) Output: apple   Note: List index starts with 0	Its  accessed by index   For example:   Fruits =(‘apple’, ‘banana’) print(Fruit[1])   Output: banana   Note: Tuple index starts with 0	Its  accessed by using key in index   For example:   Fruits={‘apple’:’red’, ’banana’:’yellow’} print(Fruit[‘apple’])   Output: yellow   Note: It’s a key and value pair.   It return values of when its key indexed	Its cannot be accessed by index or value.   But you can loop through the set items using a for loop, or ask if a specified value is present in a set, by using the in keyword.   For example:   Fruit= {"apple", "banana"} for x in Fruit:   print(x) output: apple banana  (or)  Fruit= {"apple", "banana", "cherry"} print("banana" in Fruit)  output: True