#4 Python Data Types: Dictionaries | Dictionary In Python | Dictionary CRUD | Comprehension |
#python #datatypes #dictionaries #dictionary #pythontutorial
#DICTIONARIES ARE UNORDERED AND STORE DATA IN KEY VALUE PAIRS
#CREATION | CREATE PYTHON DICTIONARY
--using the dict() or simply {}
#READ
---items() keys() values() can be used along with for loop to iterate over dicts
---individual elements can be accessed by using dict_name["key"]. keyname IN dict_name
#UPDATE
---dict_name['key'] = newvalue
#DELETE
---del and clear are used to delete element or dictionary entirely but clear will keep the reference
---dict_name.pop('key') will delete the key and return the data which was deleted
---del dict_name['key'] will delete data and not return anything
---dict_name.popitem() will remove last inserted element and hence allowing dictionary to be used as STACKS
VIDEO ON HASH VALUE
• What Are Hash Values ? || Python hash...
00:00 Intro
01:00 CREATING DICTIONARY
02:00 Accessing a dictionary element items() keys() values()
03:22 Iterating over dictionary
07:23 Updating dictionary
09:25 Deleting from dictionary
12:35 Pop() and Popitem()
14:50 len() in and not in methods KeyError
16:00 Converting List To Dictionary and viceversa
19:09 Dictionary comprehension
21:55 End
